question_answer

Match column I with column II and select the correct option from the codes given below.

Column I (Salts)	Column II  (Uses)
P.   Baking soda	1. In making fire-works
Q.  Nitre	2. As a fungicide
R.   Blue vitriol	3. In purification of water
S.   Phitkari	4. In fire extinguishers

A)  P-3; Q-2; R-4; S-1

B)  P-4; Q-3; R-1; S-2

C)  P-4; Q-1; R-2; S-3

D)  P-2; Q-1; R-4; S-3