Chemistry MCQs

Question 1

Detergents used for cleaning clothes and utensils contain

Accepted Answer

Sulphonates

Answer

Nitrates

Answer

Bicarbonates

Answer

Bismuthates

Question 2

Which one of the following chemicals helps in fruit ripening?

Accepted Answer

Ethephon

Answer

Atrazine

Answer

Isoproturan

Answer

Malathion

Question 3

Which of the following chemicals is used in photography ?

Accepted Answer

Silver bromide

Answer

Aluminium hydroxide

Answer

Potassium nitrate

Answer

Sodium chloride

Question 4

The most commonly used chemicals in the artificial rainmaking or cloud seeding are

Accepted Answer

All of the above

Answer

Silver Iodide (AgI)

Answer

Sodium Chloride (NaCl)

Answer

Dry Ice (Frozen CO2)

Question 5

Malathion is a/an

Accepted Answer

Insecticide

Answer

Fumigant

Answer

Preservative

Answer

Pesticide

Question 6

The chemical name of rat poison is

Accepted Answer

Zinc phosphide

Answer

Zinc oxide

Answer

Potassium cyanide

Answer

Lead nitrate

Question 7

Which of the toxic heavy metals is found in modern tannery industries ?

Accepted Answer

Chromium

Answer

Nickel

Answer

Zinc

Answer

Lead

Question 8

The antiseptic compound present in dettol is

Accepted Answer

chloroxylenol

Answer

Iodine

Answer

Biothional

Answer

Cresol

Question 9

Which of the following statements are correct about chloroform? a. Liquid fuel b. Anaesthetic in nature c. Produces phosgene d. Fire extinguisher

Accepted Answer

B, C

Answer

A, B

Answer

A, C

Answer

D, A