# What are $\underline X$ and $\underline Y$ respectively in the following reaction ?

$\begin {array} {1 1} (1)\;Na/NH_{3(liq)}\;and\;pd/BaSO_4+H_2 & \quad (2)\;Ni/140^{\circ}C\;and\;Pd/BaSO_4+H_2 \\ (3)\;Ni/140^{\circ}\;and \;Na/NH_{3(liq)} & \quad (4)\;pd/BaSO_4\;H_2\;and \;Na/NH_{3(liq)} \end {array}$

$(1)\;Na/NH_{3(liq)}\;and\;pd/BaSO_4+H_2$
answered Nov 7, 2013 by