616: Which of the following is issued by registered foreign portfolio investors to overseas investors who want to be part of the Indian stock market without registering themselves directly?

(a) Certificate of Deposit

(b) Commercial Paper

(c) Promissory Note

(d) Participatory Note
617: Very small-time intervals are accurately measured by the:

(a) Pulsars

(b) White dwarfs

(c) Atomic clocks

(d) Quartz clocks
618: Which one of the following statements regarding starch and cellulose is not correct ?

(a) Both of them are of plant origin

(b) Both of them are polymers

(c) Both of them give colour with iodine

(d) Both of them are made up of glucose molecules
619: Consider the following statements about acetylene :

I. It is used in welding industry.
II. It is raw material for preparing plastics.
III. It is easily obtained by mixing silicon carbide and water.

Of these statements :

(a) I and II are correct

(b) I and III are correct

(c) II and III are correct

(d) I, II and III are correct
620: 200 cm of rainfall, 20°C of temperature and well drained land is ideal for the cultivation of:

(a) Rice

(b) Tea

(c) Coffee

(d) Rubber