4176: Assertion (A)
Red phosphorous is preferred to white phosphorous in the manufacture of matches.
Reason (R)
Red phosphorous is non-poisonous in nature.
(a) Both A and R are true and R is the correct explanation of A
(b) Both A and R are true but R is NOT a correct explanation of A
(c) A is true but R is false
(d) A is false but R is true
4177: The first writer to use Urdu as the medium of poetic expression was
(a) Amir Khusru
(b) Mirza Ghalib
(c) Bahadur Shah Zafar
(d) Faiz
4178: For pasteurization by the Flash Method, milk is heated to a temperature of:
(a) 0°C
(b) 100°C
(c) - 4°C
(d) 72°C
4179: Heavy rainfall affects soil by:
(a) Increasing its acidity
(b) Increasing its alkalinity
(c) Reducing its fertility
(d) None of these
4180: A deflator is a technique of
(a) Adjusting for changes in price level
(b) Adjusting for change in commodity
(c) Accounting for decline of-GNP
(d) Accounting for higher increase of GNP