401: Urea is prepared by the chemical reaction of:

(a) Ammonia and Carbon dioxide

(b) Ammonium sulphate and calcium chloride

(c) Acetamide and ethyl alcohol

(d) Chlorine and water
402: Who among the following was never the Lok Sabha Speaker?

(a) K. V. K. Sundaram
(b) G. S. Dhillon
(c) Baliram Bhagat
(d) Hukum Singh
403: Assertion (A):
The Central Rural Sanitation Programme was launched in 1986 to improve the quality of life of rural people in India.

Reason (R) :
Rural sanitation is a subject in the Concurrent List in the Constitution of India.

(a) Both A and R are individually true and R is the correct explanation of A
(b) Both A and R are individually true but R is not the correct explanation of A
(c) A is true but R is false
(d) A is false but R is true
404: Which one of the following polymers is widely used for making bullet proof material ?

(a) Polyvinyl chloride

(b) Polyamides

(c) Polyethylene

(d) Polycarbonates
405: Which of the following is not a tenet of Gandhian Socialism:

(a) Social justice

(b) Concern for the poor but not hatred for the rich

(c) Equality of opportunities of all

(d) Nationalisation of all means of production and distribution