Give reaction conditions (reagents and/or catalyst) for effecting the following conversions :

Answer

(i) `H_(2)//Pd-BaSO_(4)`
(ii) In this conversion -CO- convents into `-CH_(2)-` which can be achieved by any one of the following reagents:
(a) `NH_(2)-NH_(2)//KOH//Delta` (b) Zn-Hg, Conc HCl, `Delta` (c) Red P + HI