MCQs of chemistry for entry test preparation of all universities admission test in Pakistan.
MCQS of Chemistry For Entry Test
Real gases show ideal behaviour at:
A. Low Temp & High Pressure
B. High Temp & Low Pressure
C. High Temp & High pressure
D. Low Temp & Low Pressure
Charle’s Law was given by Jacques Charles in:
A. 1785
B. 1787
C. 1880
D. 1885
Which of the following is known as absolute zero?
A. 0C°
B. 273K
C. 273.16C°
D. -273.16C°
Boyle’s Law was given by the Robert Boyle in:
A. 1660
B. 1661
C. 1662
D. 1663
Barometer was invented by:
A. Pascal
B. Torricelli
C. Newton
D. Huygens
Value of normal atmospheric pressure at sea level at 0°C is:
A. 1 atm
B. 760 Torr
C. 76cm of Hg
D. All of these
According to Kinetic Molecular Theory gas molecules move in ____ path?
A. Straight
B. Parabolic
C. Zig-zag
D. Hyperbolic
The theory which explains the behaviour of particles of matter in motion is called:
A. Bohr’s Theory
B. Dalton’s Theory
C. Kinetic Molecular Theory
D. None
Who is often referred to as the “father of Chemistry”?
A. Isaac Newton
B. Antoine Lavoisier
C. Dmitri Mendeleev
D. Albert Einstein
The PH of milk is:
A. 6.0
B. 6.5
C. 7.0
D.7.5
Quality of petrol is measured by:
A. octane number
B. Heptane number
C. Reforming
D. Refining
The Substance which resist in change in PH is called?
A. Neutralization
B. Osmosis
C. Buffer
D. Active transport
Alkaline PH scale starts from?
A. 8 to 14
B. 6 to 10
C. 7 to 11
D. 0 to 14
The range of acid PH on PH scale is:
A. 9 to 8
B. 6 to 7
C. 1 to 6
D. 1 to 10
At what digit of PH scale PH is neutral?
A. 5
B. 3
C. 7
D. 10
Which of the following is used with milk of lime to kill fungus and molds?
A. Chlorine
B. Silver nitrate
C. Copper Sulfate
D. Nitric acid
What is the color of precipitates of AgBr?
A. Light brown
B. Light green
C. Light Blue
D. Light yellow
Which of the following is the use of Silver nitrate?
A. used as mordant in dyeing
B. used in photography and medicines
C. used in making green pigments
D. All of these
What is the color of copper sulfate crystalline?
A. White
B. Brown
C. Blue
D. Green
What is the color of precipitates of AgI?
A. Yellow
B. Light Yellow
C. Brown
D. Blue
What is the color of precipitates of AgCl?
A. Yellow
B. Green
C. Blue
D. White
Which of following is known as Blue Vitriol or Blue Stone?
A. AgNO3
B. CuSO4.5H2O
C. K2Cr2O7
D. K2CrO4
What is the formula of Copper Sulfate?
A. CuSO3.4H2O
B. CuSO4.4H2O
C. CuSO3.5H2O
D. CuSO4.5H2O
Silver nitrate is also known as:
A. Blue Stone
B. Blue Vitriol
C. Lunar Caustic
D. Both A & B
Which of the following has lowest lattice energy?
A. LiF
B. NaCl
C. KBr
D. CsI
What is the formula of Silver nitrate?
A. AgNO
B. AgNO2
C. AgNO3
D. AgNO4
Which of the following is used in photography?
A. NaHSO3
B. Na2S2O3
C. Na2S
D. Na2SO3
Lead battery is secondary battery the paste used in it is:
A. Magnese dioxide
B. Zinc chloride
C. Ammonium chloride
D. AOT
Solvent used in separation of biomolecules is:
A. Acetone
B. Trichloroacetic acid
C. Ether
D. Alcohol
Strong Nucleophile in polar aprotic solvent?
A. Flouride ion
B. Bromide ion
C. Chloride ion
D. Iodide ion
Alum is used by dyers of cloth:
A. As water purifier
B. As mordant
C. fire proofing fabrics
D. Softening of hard water
The most useful dye for those fabric which can form hydrogen bonds is:
A. Mordent dye
B. Vat dye
C. Acid dye
D. Direct dye
Which of the following pair is not distinguished by passing H2S?
A. Hg, Pb
B. Zn, Mn
C. As, CD
D. Cd , Pb
Ozone is formed in the upper layer of the atmosphere from oxygen by action of:
A. Free radicals
B. Cosmic rays
C. Nitrogen oxides
D. UV -rays
Surface water contains:
A. only salt
B. Organic matter
C. Salt & Organic matter
D. Suspended impurity
Cyclone collector is used for minimizing:
A. Water pollution
B. Sound pollution
C. Soil pollution
D. Air pollution
The medium which interact with long lived pollutant is:
A. Source
B. Receptor
C. Sink
D. All of them
Which one of the following gives the measure of Organic pollution in water?
A. COD
B. DO
C. PH
D. Salinity
The distribution coefficient is related to:
A. Separating factors
B. decreasing factors
C. Colouring factors
D. retardation factors
The usual property of ionic crystal are:
A. Stable
B. gaseous form
C. Unstable
D. Compound forming
The fundamental way to transfer energy are:
A. pressure and temperature
B. pressure and volume
C. heat and volume
D. heat and work
Formaldehyde on condensation in the presence of calcium hydroxide:
A. Formose
B. Fructose
C. Maltose
D. Xylos
Lactic acid on oxidation by alkaline potassium permanganate gives:
A. Propionic acid
B. Cinnamic acid
C. Pyruvic acid
D. Tartaric acid
Shiff’s reagent gives pink color with
A. Acetone
B. Acetaldehyde
C. Acetic acid
D. Methyl acetate
Numbers of subatomic particles?
A. 2
B. 3
C. 1
D. more than 3
Neoprene is
A. Natural rubber
B. Vulcanized rubber
C. synthetic rubber
D. All of the above
Example of cross linked polymer is
A. Natural polymers
B. semisynthetic polymers
C. Synthetic polymers
D. None of These
Hexamethylene diamine and adipic acid combine to form
A. Natural rubber
B. Synthetic rubber
C. nylon 6-6
D. Polystyrene
Example of copolymers is
A. Polyethylene
B. PVC
C. Orlon
D. nylon 6-6
Nylon-2-nylon-6 is a ______ polymer?
A. biodegradable polymer
B. Synthetic polymer
C. Natural polymer
D. Branched polymer
Methyl radical is:
A. Sp3 hybrid having 8 electrons
B. Sp2 hybrid having 6 electron
C. sp2 hybrid having 7 electron
D. Sp hybrid having linear geometry
Electrometric effect is:
A. Permanent effect
B. Operate due to electronegativity difference
C. temporary effect
D. None of the above
Hyperconjugation is also known as:
A. Reasonable
B. no bond reasonable
C. Inductive effect
D. Electromeric effect
Greater the heat of neutralization the acid will be:
A. more stronger
B. More weaker
C. Not related to acid strength
D. None of the above
The properties which do not depend on mass of the substance are:
A. Extensive properties
B. Colligative properties
C. intensive properties
D. None of These
The process in which no heat enters or leave the system known as:
A. Isochoric
B. Isobaric
C. adiabatic
D. Isothermal
When limestone reacts with water, which gas is released?
A. Hydrogen
B. Oxygen
C. Nitrogen
D. Carbon Dioxide
Oobleck is the mixture of:
A. Gram Flour and Water
B. Baking Soda and Vinegar
C. Cement and Water
D. Cornstarch and Water
The oxidation state of cu which are expected to be diamagnetic:
A. Cu+2
B. Cu+4
C. Cu+1
D. Cu+3
The most stable state of Vanadium(V) is
A. V+3
B. V+2
C. V+3
D. V+5
Isotopes differs in:
A. arrangement of electrons in orbitals
B. position in the periodic table
C. properties depend upon mass
D. chemical properties
Antiseptic Urotropine formed by:
A. Carboxylic acid
B. Acetaldehyde
C. Formaldehyde
D. Ketone
Size of colloidal particles
A. greater than true solution
B. greater than suspension
C. In b/w true solution & suspension
D. None of These
Ketones and aldehydes can be distinguished using:
A. Bendict solution
B. Fehling solution
C. Tollens reagent
D. None of These
Mass spectroscopy mainly tells about:
A. Mass
B. e/m ratio
C. Isotopes
D. None of These
Actinides are the elements with atomic numbers from:
A. 97 to 104
B. 101 to 115
C. 89 to 103
D. 36 to 43
Ketones and Aldehydes are differentiate by using:
A. Fehling solution
B. Bendict solution
C. Silver Mirror test
D. Nitroprusside test
which of the following is a non-crystalline solid pair?
A. diamond, wood
B. glass, table salt
C. wood, glass
D. sucrose. glass
What is the chemical name of Oil of Vitriol?
A. Hydrochloric Acid
B. Sulphuric Acid
C. Nitric Acid
D. Muriatic Acid
Transition temperature for tin grey & tin white is :
A. 128.15°C
B. 18°C
C. 246.12°C
D. 96°C
The best indicator for titrating HCl with NH4OH is:
A. methyl Orange
B. litmus
C. phenol red
D. phenolphthalein
Ostwald’s dilution law applicable to:
A. All electrolytes
B. Strong electrolytes
C. Non electrolytes
D. Weak electrolytes
The phenomenon of negative catalysis is also known as:
A. auto catalysis
B. Self catalysis
C. inhibition
D. Enzyme catalysis
The decomposition of nitro-glycerine is an example of:
A. Self catalytic reaction
B. Enzyme catalytic reaction
C. Autocatalytic reaction
D. induced catalysis
Law of mass action was proposed by Goldberg and Peter Waage in:
A. 1864
B. 1866
C. 1888
D. None of These
Z number for chlorine is:
A. 35.5
B. 17
B. 15
D. 21
The only non metal exists in liquid state is:
A. Mercury
B. Bromine
C. Phosphorus
D. Iodine
The chemical symbol for silver is:
A. Au
B. Ag
C. Sv
D. At
In water molecule, Hydrogen & water are held together by ___ bond.
A. Ionic
B. Covalent
C. Hydrogen
D. Dating
One Water molecule can form maximum _____ hydrogen bonds.
A. 2
B. 3
C. 4
D. None
Cations possess __ charge?
A. +ve
B. -ve
C. Neutral
D. None
Atomic mass of an atom is present in the:
A. Shell
B. Orbit
C. Nucleus
D. Orbital
Positron has _____ charge.
A. +ve
B. -ve
C. Neutral
D. None of them
Out of Alkane, Alkene & Alkyne, which one is more acidic?
A. Alkane
B. Alkene
C. Alkyne
D. All have same
The dipole moment of CS² is:
A. 1
B. 2.3
C. 0
D. 1.8
Cathode is a metalic plate where ______ takes place.
A. Oxidation
B. Reduction
C. Redox
D. Substitution
Cyclopentane is a:
A. Aromatic
B. Alicyclic
C. Aliphatic
D. None of These
The quantity of petrol can be increased by:
A. Reforming
B. Induction fuelling
C. Cracking
D. Refining
Which one is a pure carbon?
A. Coal Tar
B. Coal gas
C. Coke
D. None of These
Octane rating of Gasoline can be increased by:
A. Refining
B. Cracking
C. Reforming
D. None of These
A process in which large molecules are broken up into into smaller molecules is called as_____.
A. Reforming
B. Cracking
C. Refining
D. Isomerization
The quality of petrol is improved by:
A. Cracking
B. Reforming
C. Refining
D. Hydration
Aldehydes and ketones both, show the type of Isomerism is:
A. chain Isomerism
B. Functional Group Isomerism
C. Metamerism
D. Position Isomerism
diamond got brilliance due to following reason?
A. reflection
B. refraction
C. dispersion
D. all of the above
Universe is almost 70% made up of:
A. Helium
B. Hydrogen
C. Chlorine
D. Carbon
Which of the following is more Basic in nature?
A. Ammonia
B. 1°Alkyl ammine
C. 2° Alkyl ammine
D. 3° Alkyl ammine
Which of the following is more acidic in nature?
A. Benzene
B. Phenol
C. Cresol
D. Aniline
Which of the following is more acidic in nature?
A. Benzene
B. Phenol
C. p-nitrobenzene
D. Cresol
The following alcohol does not undergo oxidation is:
A. 1° alcohol
B. 2° alcohol
C. 3° alcohol
D. 0° alcohol
In water, Hydrogen is present _____ by mass.
A. 22%
B. 11.11%
C. 31.13%
D. 15.15%
The product On the oxidation of 2°Alcohol is:
A. Aldehyde
B. Ketone
C. Carboxylic acid
D. Ester
Coal gas is made up of mostly __ and ___?
A. Hydrogen & Water
B. Hydrogen & Carbon dioxide
C. Hydrogen & Methane
D. Carbonmonoxdide & water
Oxalate ion behaves as a ____ ligand.
A. Unidentate
B. Bidentate
C. Tridentate
D. Hexadentate
Which of the following is a soft Coal?
A. Peat
B. Lignite
C. Bituminous
D. Anthracite
The amount of Benzene is obtained from Coal Tar on its Fractional Distillation?
A. 1-2Kg
B. 1-3Kg
C. 1-4Kg
D. 1-5Kg
Kipps Apparatus is used to prepare:
A. NaOH
B. Cl²
C. H²S
D. Cu
d-block elements are also called as:
A. Inner Transition
B. Outer Transition
C. Alkali Metals
D. Both B & C
The shielding Effect across the period:
A. Increases
B. Decreases
C. Remains Same
D. None of them
Which of the following is the Radioactive isotope of Hydrogen?
A. Protium
B. Deuterium
C. Tritium
D. Nichromium
Which one does not give borax bead test:
A. Copper sulphate
B. Barium sulphate
C. Cobalt sulphate
D. Nickel sulphate
Marsh gas is:
A. Methane
B. Ethane
C. Hydrogen
D. Nitrogen
In Dry cell, cathode is made up of:
A. Zinc
B. Carbon (Graphite)
C. ZnCl²
D. MnO²(Pyrolusite)
The equation that represents the relationship of Faraday’s first law of electrolysis is _______?
A. Z=At
B. w=ZAt
C. w=Z/At
D. Z= At/M
During electrolysis of Water, the product obtained at cathode is:
A. Hydrogen Gas &Water
B. Oxygen Gas &Water
C. Only oxygen
D. Only Water
Aamir khan Hullio
In electrolysis of NaCl the product obtained at cathode is:
A. Sodium ions
B. Chloride ions
C. Both
D. Remain at the bottom
Which of the following is non spontaneous cell?
A. Electrolytic cell
B. Galvanic cell
C. Daniel cell
D. Not
The bond energy of Hydrogen molecule is:
A. 110Kcal/mol
B. 106Kcal/mol
C. 104Kcal/mol
D. 150KJcal/mol
The Ionization energy of Hydrogen is:
A. 10.54ev
B. 12.54ev
C. 13.6ev
D. 17.56ev
The Electronegativity of Hydrogen is _____.
A. 2.8
B. 2.2
C. 3.1
D. 1.8
The whole universe is made up of almost _____of Hydrogen?
A. 50%
B. 60%
C. 70%
D. 80%
During Electrolysis of Water the product @cathode obtained is:
A. Hydrogen Gas & Water
B. Oxygen Gas & Water
C. CO & Water
D. Hydrogen & Carbon monoxide
In Bosch Process, that is used to separate the Hydrogen gas from water Gas, the catalyst is used:
A. Pt
B. FeO
C. Cr²O³
D. Both B&C
Bosch Process involves:
A. Reduction
B. Oxidation
C. Isomerization
D. Crackling
Which of the following method is used to separate Hydrogen gas from water Gas?
A. Bosch Process
B. Cyber Twinkling process
C. Palladium process
D. Steam process
Which one of the following radiation has the longer wavelength?
A. infra red
B. visible
C. x-ray
D. ultra violet
E. gamma rays
Metal are highly:
A. Electropositive
B. Electronegativity
C. Both of these
D. Neutral
Atomic number of Mn is 25 what is the electronic configuration in the ground state:
A. 1s2 2s2 2p6 3s2 3p6 3d7
B. 1s2 2s2 2p6 3s2 3p6 4s2 4p5
C. 1s2 2s2 2p6 3s2 3p5 3d10
D. 1s2 2s2 2p6 3s2 3p6 4s23d5
Main use of salt in diet is to :
A. ease the process of cooking
B. increase the taste
C. digestion and absorption
D. increase solubility of food
The source of the Sun’s energy is the process of:
A. Photoelectric emission
B. Nuclear fission
C. Nuclear fusion
D. Thermionic emission
Optic fibres are used in :
A. CAT scans
B. X-ray photos
C. Ultrasound scans
D. Endoscopy
The radio-active element used in heart pacemakers is:
A. Uranium
B. Deuterium
C. Plutonium
D. Radium
Where does the oxygen that keeps us alive come from?
A. Carbon dioxide
B. Carbonates absorbed from soil
C. Oxides of minerals
D. Water
Soap is prepared by boiling caustic soda with:
A. Alcohol
B. Kerosene oil
C. Glycerine
D. Fats
Who discovered carbohydrates fats and proteins?
A. William Prout
B. Jons Jacob Berzelius
C. Anselme Payen
D. Walter Bradford Cannon
Hookworm is a parasitic worm that infects:
A. large intestine
B. liver
C. lungs
D. small intestine
Nitrate (NO3) ions are obtained by the process of:
A. Nitrification
B. Fermentation
C. Denitrification
D. None of these
Which one of the following results in the discovery of proton.
A. Cathode rays
B. Canal rays
C. X-rays
D. Alpha rays
The radiations with negative charge are:
A. Alpha radiations
B. Gamma radiations
C. Beta radiations
D. positron
The radiations with highest speed are:
A. Alpha radiations
B. Gamma radiations
C. Beta radiations
D. AOT
Petra means:
A. Petrol
B. Sediment
C. Rock
D. Fuel
When the radiation of light is passed through a prism, it undergoes:
A. reflection
B. interference
C. diffraction
D. refraction
__ is one of the allotropic modifications of carbon.
A. Silicon
B. Diamond
C. Iodine
D. Graphite
Atom is the smallest partial which is:
A. Indivisible
B. Divisible
C. Both
D. Non of these
Which of the following statement is correct ?
A. size of Cl atoms > Cl- ion
B. size of Na+ ion < Na atom
C. size of Na atom < Na+ ion
D. Cl- < Na+
An acid-Base Reaction is always a/an :
A. Endothermic
B. Exothermic
C. Fission
D. Fusion
A metallic atom loses its valence electron to form a/an:
A. an anion
B. a cation
C. an anion – cation
D. none of these
Chemistry is given from ……language ?
A. Latin
B. Greek
C. Arabic
D. None of these
Atoms of all the elements always contain in nucleus:
A. Proton and neutron
B. Neutron and electron
C. Proton
D. Neutron
What is the mass of one mole of Iodine?
A. 74g
B. 254g
C. 127g
D. 53g
The earth absorb radiation in Visible range but emit radiation at the same rate in the:
A. Ultra voilet
B. Gamma rays
C. Infrared
D. All of these
The rate of formation of ozone depends on the flux of:
A. visible radiation
B. Ultra violet radiation
C. Infrared radiation
D. Gamma rays
Polyamides are synthetic polymers commonly known as___________?
A. synthetic
B. Protein
C. Cellulose
D. Nylon
How much solar flux absorb by earth’s surface is used to drive hydrologic cycle:
A. 1/2sec
B. 1/3rd
C. 1/4th
D. 1/5th
Which one of the following serve as aquatic solar fuel cell:
A. Bacteria
B. Virus
C. Fungi
D. Algae
Who used the term Concentrationwindow to draw the arbitrary lines of demarcation
A. Einstein
B. Dr.A.Walash
C. Schwartz
D. S.E.Manhan
Element that have same number of neutrons are called:
A. isotope
B. isobar
C. isotone
D. None of these
Calculate % of N in KNO3:
A. 14.34%
B. 18.56%
C. 13.86%
D. None of these
The pH of milk is:
A. 9
B. 6.5-7
C. 8
D. 12
The Boiling Point of Ethyl Alcohol is:
A. 78°C
B. 58°C
C. 73°C
D. 56°C
Why do we determined the boiling point of a liquid?
A. To check its Acidity and Basicity
B. To Check temperature
C. To check its Purity and nature
D. None of These
Which of the following can be separated by ” Sublimation Method”?
A. Sand and Iron Filing
B. Sand and Naphthalene
C. Both A & B
D. None
The Chemical Formula of Sand is:
A. Si2O3
B. SiO2
C. Al2O3
D. Sr2O
Benzene gives mainly:
A. Addition reaction
B. Substitution reactions
C. Halogenation
D. All of these
The Bond Energy of H-F is:
A. 456kJ/mol
B. 562kJ/mol
C. 281kJ/mol
D. None
The element used for the formation of alloys is:
A. Iron
B. Calcium
C. Mercury
D. Chromium
Air is a/an:
A. Compound
B. Element
C. Electrolyte
D. Mixture
Give Electronic configuration of Sodium:
A. 1s2,2s2,2p6
B. 1s2,2s2,2p6,3s2
C. 1s2,2s2,2p6,3s1
D. None of these
For the generation of biogas, the materials commonly used are:
A. Animal wastes
B. Forest residues
C. Aquatic plants
D. None of these
Which of the following is not the name of any scientist?
A. Pauli exclusion principle
B. Hund’s rule
C. Aufbau’s principle
D. Le-Chatelier’s principle
Which of the following is the most Viscous?
A. Glycerine
B. Water
C. Honey
D. Spirit
Urea as a fertilizer contains::
A. 57% N
B. 73% N
C. 46% N
D. 53% N
Which molecule have stronger London dispersion forces?
A. Hydrogen gas
B. Water
C. Bromine
D. Hydrochloric acid
The concept of ensemble was introduced by:
A. Boltzmann
B. Gibbs
C. Carnot
D. Mexwell
Phonon is Quantum of:
A. Longitudinal wave
B. Elastic wave
C. Transverse wave
D. Electromagnetic wave
Which gas is used for artificial ripening of green fruit ?
A. Carbon dioxide
B. Acetylene
C. Ethane
D. Ethylene
Barret exophages is good example of:
A. Atrophy
B. Dysplasia
C. Metaplasia
D. Hypertrophy
E. Hyperplasia
Which of the following is solid?
A. Water
B. Stone
C. Both
D. None
The number of ions produced by [Pt(NH3)]Cl2?
A. 4
B. 2
C. 3
D. 5
The practical problem in Hydrogen production is it:
A. Weight
B. Valency
C. Size
D. Chemical property
Radiations are harmful as it:
A. Causes skin cancer
B. Causes anemia
C. Alters body tissue
D. is unstable
Soil pollution is caused by:
A. Aerosol
B. Ozone
C. Acid rain
D. PAN
What are the metal bearing rocks called?
A. Bitumen
B. Bauxite
C. Metalloids
D. Ores
One fathom is equal to:
A. 6 feet
B. 6 meters
C. 60 feet
D. 100 cm
Reading of a Barometer going down is an indication of:
A. Snow
B. Storm
C. Intense heat
D. Rainfall
Actinides are the elements with atomic number from:
A. 97 to 104
B. 101 to 115
C. 89 to 103
D. 36 to 43
Carbon, Diamond and Graphite are together called:
A. Allotrope
B. Isomers
C. Isomorphs
D. Isotopes
According to Journal of Biological Chemistry 158, human brain and heart are composed of ____water?
A. 75%
B. 81%
C. 73%
D. 89%
The solution remaining after the formation of crystals is called:
A. Mother liquor
B. Dilute solution
C. Residue
D. both A & B
When Ammonia is used as a refrigerant in vapour compression cycle?
A. Cu Tubing used
B. Steel tubes used
C. Both a & b
D. Material does not effect by refrigerant
Example of ‘globular’ proteins is:
A. Peptide
B. Enzymes
C. Primary protein
D. Secondary proteins
which Compound Destroy The OZONE ?
A. CFCs
B. CH3COOH
C. BOTH A & B
D. None Of These
In whole Periodic Table which element Is Most Reducing Agent ?
A. Chlorine
B. lithium
C. Helium
D. Neon
Effective volume is usually taken for:
A. 2 moles of gas
B. 1 mole of gas
C. 5 moles of gas
D. 3moles of gas
Process used to separate insoluble particles from liquids is:
A. Drying
B. Filtration
C. Sieving
D. Extraction
Column of manometer which faces liquid is:
A. Raised
B. Depressed
C. Compressed
D. Remains same
Quantum numbers are:
A. Arithmetical values
B. Numerical values
C. Leometric values
D. Logical values
Distance at which attractive forces of hydrogen overcome repulsive forces is:
A. 75.2pm
B. 75.3pm
C. 75.5pm
D. 75.4pm
In a group, atomic radii increase due to successive increase of ___ ?
A. Electronic shells
B. Proton shells
C. Neutron shells
D. Nucleus
Chromatography is used to separate:
A. Solution
B. Mixtures
C. Molecules
D. Atoms
In SI base units, 1 Bq is equal to:
A. 10 disintegration per second
B. 1.5 disintegration per second
C. 0.01 disintegration per second
D. 1 disintegration per second
Elements which emit natural radioactivity are known as:
A. Radio elements
B. Active elements
C. Radioactive elements
D. Nuclear elements
Alpha (α) particles are helium (He) nucleus with a charge of:
A. e
B. 2e
C. 3e
D. 4e
Treatment of sucrose with conc. HNO3 gives:
A. Nitrosucrose
B. Glucose+ fructose
C. Oxalic acid
D. Laevulinic acid
How many isomeric aldoses are possible for the molecular formula C6H12O6?
A. 2
B. 4
C. 7
D.16
The IUPAC name of pyridines is:
A. Azolo
B. Azine
C. Azolidins
D. Diazine
The hybridization of nitrogen atom in pyridine is:
A. Sp
B. Sp2
C. Sp3
D. It is not hybridized
Which of the following compounds is not soluble in HNO3:
A. CuS
B. CdS
C. PbS
D. AgCl
The weight of a metal of equivalent of 12 which will give 0.475g of its chloride is:
A. 0.12g
B. 0.16g
C. 0.18g
D. 0.24g
When SO2 solution is passed over which of the following it turns green?
A. K2Cr2O7
B. H2SO4
C. SO3
D. P2O5
The composition of ‘ Golden spangles is:
A. PbCrO4
B. PbI2
C. As2Cr2O7
D. BaCrO4
What is chemical symbol for Tungsten?
A. Z
B. T
C. Tn
D. W
Noble gases are so called zero group because they have:
A. Zero Valency
B. Zero Electronegativity
C. Zero Electron Affinity
D. Both A and B
E. All of these
The reaction of Lucas reagent is the fastest with:
A. (CH3)2CHOH
B. CH3(CH2)OH
C. CH3CH2OH
D. (CH3)3COH
If volumetric analysis methyl orange indicator is used when:
A. Acid is strong
B. Acid is weak
C. Bade is strong
D. Acid is strong base is weak
Ethylene diamine is ligand:
A. mono dentate
B. Bi dentate
C. tri dentate
D. Poly dentate
Formula of Galena is:
A. PbS
B. HgS
C. AS2S3
D. FeS2
Molecular orbital Theory is also called:
A. Bonding theory
B. Band theory
C. Antibonding theory
D.π and σ bonding theory
BeCl2 has the hybrid orbitals of type:
A. Sp2
B. Sp3
C. Sp
D. dsp2
I3( Tri-iodine) has shape:
A. Trigonal bipyramidal
B. Linear
C. Square bipyramidal
D. Both A and C
Water molecule is:
A. V-shaped
B. Angular
C. Pyramidal
D. Triangular planer
In borax bead test which compound is formed:
A. Ortho burate
B. Meta borate
C. Double oxide
D. Tetra borate
Percentage of lead in lead pencil is:
A. Zero
B. 20
C. 80
D. 70
Cassiterite is an ore of:
A. Mn
B. Ni
C. Sb
D. Sn
Which of the following shows electrical conduction:
A. Potassium
B. Graphite
C. Diamond
D. Sodium
The type of hybridisation of boron in diborane is:
A. Sp- hybridisation
B. Sp2- hybridisation
C. Sp3- hybridisation
D. Sp3d2- hybridisation
Which of the following element has the maximum electron affinity:
A. Cl
B. Br
C. I
D. F
The structure of H2O2 is:
A. Planar
B. Non- polar
C. Spherical
D. Linear
The volume strength of 1.5 N H2O2 solution is:
A. 4.8
B. 5.2
C. 8.8
D. 8.4
Electronic Configuration of Calcium (Ca) atom may be written as:
A. Ne, 4p2
B. Ar, 4s2
C. Ne, 4s2
D. Kr,4p2
Ce58 is a member of:
A. S-block
B. P-block
C. d-block
D. f-block
Basicity of orthophosphoric acid is:
A. 2
B. 3
C. 4
D. 5
Gypsum is:
A. CaSO4
B. CaSO4.1/2H2O
C. CaSO4,2H2O
D. CaSO4.3H2O
Parke’s process is used in the extraction of:
A. Iron
B. Sodium
C. Silver
D. Zinc
Which metal is used as a reducing agent in Smelting:
A. C
B. Zn
C. Al
D. Cu
A process used for the Concentration of Ore is:
A. Roasting
B. Forth flotation
C. Electrolysis
D. Distillation
Which Oxide of Manganese is amphoteric?
A. MnO2
B. Mn2O3
C. Mn2O7
D. MnO
The purpose of Smelting an ore is to:
A. Reduce it
B. Oxidize it
C. Obtain an alloy
D. Separate volatile impurities
Which set of quantum numbers is not allowed?
A. n=2,l=1,m1=0,ms=+1/2
B. n=2,l=1,m1=-1,ms=+1/2
C. n=2,l=0,m1=0,ms=-1/2
D. n=2,l=2,m1=1,ms=-1/2
Find the PH of a 0.001 M solution of Nitric acid HNO3?
A. 2
B. 3
C. 4
D. 5
Marsh gas is:
A. Nitrogen
B. Ethane
C. Methane
D. Hydrogen
The average salinity of sea water is:
A. 3%
B. 3.5%
C. 2.5%
D. 2%
Tetraethyl lead is used as:
A. Pain Killer
B. Fire Extinguisher
C. Mosquito Repellent
D. Petrol Additive
Electric bulb filament is made of:
A. Copper
B. Aluminium
C. Lead
D. Tungsten
Oxidation state +1 for phosphorous is found in:
A. H3PO3
B. H3PO4
C. H3PO2
D. H2P2O7
SO2 reacts with Cl in sunlight to form:
A. Sulphur dioxide
B. Sulfuryl chloride
C. Sulphonyl chloride
D. All of the above
Argon gas was discovered by:
A. Rayleigh
B. Ramsay
C. Lockerey
D. Dalton
The number of lone pairs in XeOF4 is:
A. O
B. 1
C. 2
D. 3
The O-O linkage is present in:
A. H2S2O3
B.H2SO8
C. H2S4O6
D. H2 S2 O6
Poisonous gas present in the exhaust fumes of a jet plane is:
A. Flurocarbon
B. Carbon monoxide
C. Methane
D. C2H2
The formula C6H5-CO-CH3 represents:
A. Acetone
B. Acetic acid
C. Acetophenone
D. Phenyl acetate
What is the density ofargon gas at a temperature of 30°C and a pressure of 1.05 atm?
A. 1.65 g/L
B. 1.67 g/L
C. 1.68 g/L
D. None of the above
Argon gas was discovered by:
A. Rayleigh
B. Ramsay
C. Lockerey
D. Dalton
The number of lone pairs in XeOF4 is:
A. O
B. 1
C. 2
D. 3
The O-O linkage is present in:
A. H2S2O3
B.H2SO8
C. H2S4O6
D. H2 S2 O6
Poisonous gas present in the exhaust fumes of a jet plane is:
A. Flurocarbon
B. Carbon monoxide
C. Methane
D. C2H2
The formula C6H5-CO-CH3 represents:
A. Acetone
B. Acetic acid
C. Acetophenone
D. Phenyl acetate
What is the density ofargon gas at a temperature of 30°C and a pressure of 1.05 atm?
A. 1.65 g/L
B. 1.67 g/L
C. 1.68 g/L
D. None of the above
The molecular formula for cholesterol is C27 H46 O. What are the degrees of unsaturation for this compound?
A. 5
B. 6
C. 7
D. 8
What is the mass percent of silver in silver notrate, AgNO3?
A. 64.5%
B. 65.6%
C. 63.5%
D. 61.5%
How many moles are in 22.2 grams of Calcium chloride, CaCl2?
A. 0.2 moles
B. 0.3 moles
C. 0.4 moles
D. 0.5 moles
The mass of 3.2 moles of ammonia (NH3) gas?
A. 53.4 grams
B. 54.4 grams
C. 55.4 grams
D. 56.4 grams
Which of the following aqueous solutions would have the highest boiling point?
A. 0.20 m glucose
B. 0.20 m NaCl
C. 0.15 m CaCl2
D. 0.25 m sucrose
The octane number of zero is assigned to:
A. 2-methyl octane
B. n-heptane
C. iso-octane
D. 3-methyl octane
The heat required to raise the temperature of body by 1 K is called:
A. specific heat
B. thermal capacity
C. water equivalent
D. None of the above
The most commonly used bleaching agent is:
A. alcohol
B. carbon dioxide
C. chlorine
D. sodium chlorine
The main buffer system of the human blood is:
A. H2CO3 – HCO3
B. H2CO3 – CO32-
C. CH3COOH – CH3COO–
D. NH2CONH2 – NH2CONH+
The molecules of which gas have highest speed?
A. H2 at -73oC
B. CH4 at 300 K
C. N2 at 1,027oC
D. O2 at 0oC
The metallurgical process in which a metal is obtained in a fused state is called__________?
A. smelting
B. roasting
C. calcinations
D. froth floatation
The number of d-electrons in Fe2+ (Z = 26) is not equal to that of:
A. p-electrons in Ne(Z = 10)
B. s-electrons in Mg(Z = 12)
C. d-electrons in Fe(Z = 26)
D. p-electrons in CI(Z = 17)
Which of the following orbitals has maximum penetration effect?
A. S
B. P
C. d
D. f
Which of the following is most soluble on water?
A. BaSO4
B. SrSO4
C. CaSO4
D. MgSO4
The common oxidation state of lanthanides is:
A. +3
B. +2
C. +1
D. +4
Which one of the following is a bridge element?
A. Be
B. Cl
C. K
D. P
Which group contains elements that exist as monoatomic molecule?
A. 1
B. 2
C. 14
D. 18
The concept of telluric helix was developed by:
A. Lother Meyer
B. A.E de Chancourtois
C. Newland
D. Dobereiner
The law of traids is applicable to:
A. Li, Be, B
B. F, Cl, Br
C. Cl, Br, I
D. Na, K, Rb
Grignard reagent gives carboxylic acid with:
A. CO2
B. CH3CHO
C. COC2
D. HCN
Hydrocarbon is formed when Grignard reagent is treated with:
A. H2O
B. CH3OH
C. Both a and b
D. None of the above
Which of the following haloalkane is hydrolysed by SN1 mechanism?
A. CH3Br
B. CH3CH2Br
C. CH3CH2CH2Br
D. (CH3)3CBr
The density of a gas is 1.964 g dm-3 at 273 K and 76 cm Hg. The gas is:
A. CH4
B. CO2
C. C2H4
D. Xe
In a closed vessel, a gas is heated from 300K to 600 K. The kinetic energy becomes:
A. Double
B. Same
C. Half
D. Four times
Which of the following gases shows more ideal behaviour at 0°C:
A. H2
B. CH4
C. He
D. NH3
Azimuthal quantum number defines:
A. e/m ratio of an electron
B. Spin of an electron
C. Angular momentum of an electron
D. Magnetic momentum of an electron
Magnetic quantum number specifies___________?
A. Size of orbitals
B. Shape of orbitals
C. Orientation of orbitals
D. All of the above
If R is the Rydberg constant for hydrogen, then wave-number of the second line in the Lyman series is:
A. 2 R
B. R/2
C. 3R/4
D. R/4
Generally the limit of visible spectrum is:
A. 1000 to 300 A°
B. 3800 to 7600 A°
C. 8000 to 10,000 A°
D. 12,000 to 15,000 A°
Alpha particles can be detected by using:
A. Gold foils
B. Barium sulphate
C. Zinc sulphide screen
D. Thin Aluminium sheet
The PH of pure water at 25°C, kw=1×10-4:
A. 0
B. 7
C. 14
D. None of above
The PH of Tears is:
A. 7.0
B. 7.4
C. 7.8
D. 8.2
The PH of the 1.3 × 10-4 NH4Cl is:
A. 1.3
B. 4.0
C. 2.886
D. 3.886
The PH of the 0.0032 M H2SO4 is:
A. 3.2
B. 4.0
C. 2.198
D. 1.0
The compound (CH3)3COH according to IUPAC is known as:
A. Tert-Butanol
B. 2,2-Dimethyl-propanol
C. Tert Alcohol
D. 1,1- Diethylethanol
The IUPAC name of HCONH2 is:
A. Methanamide
B. Methanoylamine
C. Aminoethanol
D. Formamide
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