2168: Consider the following statements:
1. During the process of osmosis, the solvent travels from concentrated solution to the diluted solution.
2. In the reverse osmosis, external pressure is applied to the dilute solution.
Which of the following statements given above is/are correct?
(a) 1 only
(b) 2 only
(c) Both 1 and 2
(d) Neither 1 nor 2
2170: What is the correct chronological order in which the following appeared in India ?
I. Gold coins
II. Punch-marked silver coins
III. Iron plough
IV. Urban culture
Select the correct answer using the codes given below :
Codes :
(a) III, IV, I, II
(b) III, IV, II, I
(c) IV, III, I, II
(d) IV, III, II, I