One Nanometre is

(a)

10^-7 metre

(b)

10^-8 metre

(c)

10^-6 metre

(d)

10^-9 metre

1% solution of Iodoform is used as

(a)

antipyretic

(b)

antimalarial

(c)

antiseptic

(d)

antacid

The age of a dead animal can be determined by using an isotope of ____________

(a)

carbon

(b)

iodine

(c)

phosphorous

(d)

oxygen

This type of food protect us from deficiency diseases.

(a)

Carbohydrates

(b)

Vitamins

(c)

Proteins

(d)

Fats

The groups responsible for the colour of an organic compound is called

(a)

isotopes

(b)

auxochrome

(c)

chromogen

(d)

chromophore

____________ Present in the lemon juice acts as electrolyte.

(a)

Sulphuric acid

(b)

Nitric acid

(c)

Hydrochloric acid

(d)

Citric acid

Which of the following methods is suitable for preventing iron frying pan from rusting?

(a)

Applying grease

(b)

Applying paint

(c)

Applying coating of zinc

(d)

All the above

The source of drug of liquid paraffin is _____________.

(a)

Micro organism

(b)

Minerals

(c)

Plants

(d)

Animal

Chloroform reacts with oxygen and forms this toxic substance, hence it is not used now

(a)

Carbonyl chloride

(b)

Carbon dioxide

(c)

Carbon monoxide

(d)

Carbon disulphide

Paracetamol is an _____________.

(a)

Analgesics

(b)

Antipyretics

(c)

Antiseptic

(d)

Antimalarial