Chemistry MCQs

Question 1

Detergents are

Accepted Answer

Sodium salts of sulphonic acids

Answer

Sodium salts of fatty acids

Answer

Sodium salt of benzoic acid

Answer

None of the above

Question 2

The metal compound commonly found in Sindhoor or Kumkum is based on

Accepted Answer

Lead

Answer

Tin

Answer

Copper

Answer

Zinc

Question 3

Substance used as an anti freeze in radiators of automobiles is :

Accepted Answer

Methyl alcohol and H2O

Answer

Methyl alcohol

Answer

Ethyl alcohol

Answer

Ethyl alcohol and H2O

Question 4

Which of the following is used to remove rust stains on cloth?

Accepted Answer

Oxalic acid solution

Answer

Kerosene

Answer

Lime

Answer

Petrol

Question 5

Which is not an anasthetic agent in surgical operations?

Accepted Answer

Acetone

Answer

Chloroform

Answer

Ether

Answer

Nitrous oxide

Question 6

Synthetic detergents are prepared from

Accepted Answer

Hydrocarbons of petroleum

Answer

Potassium salts of higher fatty-acids

Answer

Sodium salts of higher fattyacids

Answer

Glycerides

Question 7

What is a mixture of potassium nitrate, powdered charcoal and sulphur called?

Accepted Answer

Gun powder

Answer

Glass

Answer

Cement

Answer

Paint

Question 8

Iodex, a pain relief balm, has the smell of ________ .

Accepted Answer

Methyl salicylate

Answer

Ethyl salicylate

Answer

Propyl salicylate

Answer

Butyl salicylate

Question 9

Silver halides are used in photographic plates because they are

Accepted Answer

Reduced by light

Answer

Oxidised in air

Answer

Soluble in hyposolution

Answer

Totally colourless