Match the reactions in Column I with the types of products/the use of products in Column II.

Match the reactions in Column I with the types of products/the use of

1.	Match the reactions in Column I with the types of products/the use of products in Column II.
Answer» `{:(P,Q,R,S),(1,3,2,4):}` `{:(P,Q,R,S),(3,2,4,1):}` `{:(P,Q,R,S),(4,3,1,2):}` `{:(P,Q,R,S),(4,1,2,3):}` Solution : Hydroquinone acts as developer (Q) `BaCl_(2)+K_(2)Cr_(2)O_(7)+3H_(2)SO_(4)toK_(2)SO_(4)+2CrO_(2)Cl_(2)+2BaSO_(4)+3H_(2)O` LTBR. (R) `FeSO_(4)+K_(3)[FE(CN)_(6)]toKF e^(II)[Fe^(III)(CN)_(6)]+K_(2)SO_(4)` (S) `CO(NO_(3))_(2)+ZnOoverset(Delta)toCoZnO_(2)` or COO. ZnO