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