NTPC CBT-2 Chemistry Quiz

Question 1:

The instant burning of LPG in a gas stove is the example of

Spontaneous combustion

Rapid combustion

Explosion

Slow combustion

Question 2:

The products obtained from destructive distillation of coal are

Coke , petrol , kerosene , coal gas

Coke , coal gas , coal tar , ammoniacal solution

Coke , ammoniacal solution , petrol , kerosene

Coal tar, petrol, coal gas, coke

Question 3:

Eutrophication is enrichment of the inorganic nutrient in natural waters.This leads to

An increased production of algae and macrophytes.

An increased production of fishes.

An increased production of animals.

None of these

Question 4:

Which of the following non-metal is used for manufacturing of ammonia?

Oxygen

Chlorine

Nitrogen

Iodine

Question 5:

A metal is used for making automobile batteries is-

Aluminium

Lead

Gold

Silver

Question 6:

Non metals do not displace hydrogen from dilute acids because-

Non metals are able to give electrons for oxidation of H+

Non metals are not able to give electron for reduction of H+ .

Non metals are not able to give electrons for oxidation of H+.

Non metals are able to give electron for reduction of H+.

Question 7:

Which of the following was the first organic compound synthesized in laboratory?

Sulphuric acid

Urea

Vinegar

Ammonium chloride

Question 8:

Which of the following is/are used for removing permanent hardness of water?

Potassium chloride
Sodium carbonate
Calcium hydroxide
Ammonium chloride

1,2,3

1,2,4

1,2

2,3,4

Question 9:

The black tarry material obtained from coal on strong heating in the absence of air is

Coke

Coal tar

Coal gas

Ammoniacal solution

Question 10:

Which of the following electrolyte is used for the electroplating of copper?

Acidified solution of sodium sulphate

Acidified solution of zinc sulphate

Aqueous solution of copper sulphate

Acidified solution of copper sulphate

NTPC CBT-2 Chemistry Quiz - 66

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NTPC CBT-2 Chemistry Quiz - 66

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