Everyday Science MCQS Set-14

Everyday Science MCQS Set-14 for preparation.

For which Diode is used:

A. Purification
B. Modulation
C. Oscillation
D. Amplification

Which organic compound is used to remove stains of iron compounds?

A. Benzoic acid
B. Oxalic acid
C. Cinnamic acid
D. Phthalic acid

‘Cryogenics’ is a science dealing with:

A. Low temperature
B. High temperature
C. Growth of crystal
D. Friction and wear

Bleaching powder is used in drinking water as a:

A. Disinfectant
B. Coagulant
C. Antibiotic
D. Antiseptic

Fleming’s right hand rule is used to find the direction of the:

A. Direct current
B. Alternate current
C. Actual current
D. Induced current

A person is hurt on kicking a stone due to:

A. Velocity
B. Inertia
C. Reaction
D. Momentum

Curie it is the temperature at which:

A. A metal loses conductivity
B. A metal loses magnetic property
C. Matter becomes radioactive
D. Transmutation of metal occurs

What happens when a chemical bond is formed?

A. Energy is always absorbed
B. Energy is always released
C. More energy is released than is absorbed
D. Energy is neither released nor absorbed

When a bar magnet is cut into two equal halves, the pole strength of each piece:

A. Becomes zero
B. Remains the same
C. Becomes half
D. Becomes double

Lightning is caused due to:

A. Electric power
B. Electric pressure
C. Electric leakage
D. Electric discharge

The plastic material commonly used for making gear wheels is:

A. Nylons
B. Polyesters
C. Polystyrene
D. Bakelite

Which is used to iodize common salt?

A. Iodine
B. Sodium iodide
C. Potassium iodide
D. Potassium iodate

What is the most commonly used substance in fluorescent tubes?

A. Mercury oxide and neon
B. Sodium vapour and neon
C. Sodium oxide and argon
D. Mercury vapour and argon

Formation of Ozone hole is maximum over:

A. India
B. Europe
C. Antarctica
D. Africa

Saccharin is made up of:

A. Butane
B. Propane
C. Phenol
D. Toluene

Which of the following metals form an amalgam with other metals?

A. Lead
B. Tin
C. Zinc
D. Mercury

Which compound is commonly used as an antiseptic in mouth washes and toothpaste?

A. Saltpeter
B. Sodium chloride
C. Borax
D. Hydrogen peroxide

Type metal used in printing press is an alloy of:

A. Lead and copper
B. Lead and zinc
C. Lead and bismuth
D. Lead and antimony

In electro-refining, the pure metal depicted on:

A. Cathode
B. Anode
C. Vessel
D. Electrolyte

Which is not an anesthetic agent in surgical operations?

A. Ether
B. Chloroform
C. Acetone
D. Nitrous oxide

Sweat contains water and:

A. Vinegar
B. Salt
C. Lactic acid
D. Citric acid

Radiations which is not emitted during radioactivity is:

A. a rays
B. B rays
C. y rays
D. Cathode rays

The compound that has the least value for Octane number is:

A. n-heptane
B. Iso-octane
C. 2-methyl heptane
D. 2, 2-dimethyl hexane

The wire of flash bulbs is made up of:

A. Ba
B. Ag
C. Mg
D. Cu

Formula of the Magnetite is:

A. Fe3O4
B. Fe2O3
C. Fe Co3
D. 2Fe2O3.H2O

The degree of dissociation of an electrolyte depends on:

A. Atmospheric pressure
B. Dilution
C. Impurities
D. Method of dissolution

An example of heterocyclic compound is:

A. Furan
B. Benzene
C. Anthracene
D. Naphthalene

Sulphuric acid is:

A. Tribasic
B. Dibasic
C. Monobasic
D. Tetrabasic

The filter over which sewage is sprinkled is called as:

A. Contact bed
B. Percolating filter
C. Trickling filter
D. Intermittent filter

Iodine value is used to estimate:

A. Alkali content in oil
B. Unsaturation in oil
C. Hydroxyl groups in oil
D. Carboxylic groups in oil

Benzene cannot undergo:

A. Oxidation reaction
B. Substitution reaction
C. Addition reaction
D. Elimination reaction

Radioactive elements emit:

A. Ultraviolet waves
B. Infrared waves
C. Radio waves
D. a, B, y radiations

Sulphur Dioxide level in the atmosphere can be replaced by using:

A. Low-Sulphur fuels
B. More efficient car engines
C. Catalytic converters in the industry
D. Static electricity to attract it in factory chimneys

The enormous amount of energy released in an explosion of an atom bomb is due to the:

A. Conversion of neutrons into protons
B. Conversion of mechanical energy into nuclear energy
C. Conversion of mass into energy
D. Conversion of chemical energy into heat energy

The manufacture of iron from iron ore involves the process of:

A. Oxidation
B. Reduction
C. Electrolysis
D. Fractional distillation

The function of sedimentation tank in Sewage treatment is to:

A. Aerate the sewage
B. Remove water content
C. Disinfect the sewage
D. Remove suspended solids

If lime water is kept in the air, it turns milky due to presence of:

A. Nitrogen
B. Oxygen
C. Sulphur dioxide
D. Carbon dioxide

Which processes is used for the production of Biodiesel?

A. Translation
B. Transcription
C. Transamination
D. Transesterification

Wood Spirit is known as:

A. Ethyl alcohol
B. Butyl alcohol
C. Methyl alcohol
D. Propyl alcohol

A powerful eye irritant present in smog is:

A. Carbon dioxide
B. Sulphur dioxide
C. Nitric oxide
D. Peroxyacetyl nitrate

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