Chemistry MCQs

Question 1

Vinegar is ________ .

Accepted Answer

Diluted acetic acid

Answer

Glacial acetic acid

Answer

Glacial formic acid

Answer

Diluted formic acid

Question 2

pH value between 6.5-7.5 makes the soil

Accepted Answer

Neutral

Answer

Basic

Answer

Acidic

Answer

None of these

Question 3

A pungent smell often present near the urinals is due to

Accepted Answer

Ammonia

Answer

Sulphur dioxide

Answer

Chlorine

Answer

Urea

Question 4

Ammonial is a mixture of

Accepted Answer

Aluminium powder and ammonium nitrate

Answer

Aluminium powder and ammonium chloride

Answer

Aluminium powder and ammonium sulphate

Answer

Aluminium powder and potassium nitrate

Question 5

The gas dissolved in water that makes it basic is :

Accepted Answer

Ammonia

Answer

Sulphur dioxide

Answer

Hydrogen

Answer

Carbon dioxide

Question 6

Which of the following acts as promoter for iron in Haber's process?

Accepted Answer

Mo

Answer

Mn

Answer

Mg

Answer

W

Question 7

One property of ammonia is

Accepted Answer

Its aqueous solution turns red litmus blue

Answer

It is insoluble in water

Answer

It is a odourless gas

Answer

It is a yellowish gas

Question 8

Which one of the following is used for dating very old objects of archaeological importance?

Accepted Answer

Carbon-14

Answer

Phosphorus-31

Answer

Tritium

Answer

Radium

Question 9

In which of the following substances all carbon atoms are quaternary in nature ?

Accepted Answer

Diamond

Answer

Graphite

Answer

Teflon

Answer

Napthalene