1.

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
Answer» D.  P-2; Q-1; R-4; S-3


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