Question

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

A. `{:(P,Q,R,S),(1,3,2,4):}`
B. `{:(P,Q,R,S),(3,2,4,1):}`
C. `{:(P,Q,R,S),(4,3,1,2):}`
D. `{:(P,Q,R,S),(4,1,2,3):}`

Answer 1

Correct Answer - C

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