Match List-I with List-II
List-I: Name of reaction
List-II: Reagent
(I) Clemmensen → (P) $\mathrm { Zn } - \mathrm { Hg } /$ con. HCl
(II) Wollf Kishner → (Q) $\mathrm { NH } _ { 2 } - \mathrm { NH } _ { 2 } / \mathrm { OH } -$
(III) Tollen's → (R) $\left[ \mathrm { Ag } \left( \mathrm { NH } _ { 3 } \right) _ { 2 } \right] \mathrm { OH }$
(IV) Fehling → (S) $\mathrm { CuSO } _ { 4 } \cdot 5 \mathrm { H } _ { 2 } \mathrm { O }$
(N) $\mathrm { NaOH } + \mathrm { ROchelle } ^ { \prime } \mathrm { s }$ Salt