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List-I (ppt.)	List-II (colour)
(P) \[A{{g}_{2}}CrO\]	(1) Yellow
(Q) \[C{{u}_{2}}[Fe{{(CN)}_{6}}]\]	(2) White
(R) \[BaS{{O}_{4}}\]	(3) Chocolate brown
(S) \[Pb{{I}_{2}}\]	(4) Scarlet Red

Codes:

A) P-4         Q-2         R-1         S-3

B) P-2         Q-3         R-4         S-1

C) P-4         Q-3         R-2         S-1

D) P-3         Q-4         R-1         S-2