Solveeit Logo
Login

Question

Question: An element reacts with hydrogen to form a compound A which on treatment with water liberates hydroge...

An element reacts with hydrogen to form a compound A which on treatment with water liberates hydrogen gas. The element can be.

A

Nitrogen

B

Chlorine

C

Selenium

D

Calcium

Answer

Calcium

Explanation

Solution

Ca+H2→CaH2→2H2OCa(OH)2+2H2Ca + H_{2} \rightarrow CaH_{2}\overset{\quad 2H_{2}O\quad}{\rightarrow}Ca(OH)_{2} + 2H_{2}