Question

The evolved gas is not very soluble in the water and the water remains neutral. When ignited in air, the gas burns with a blue flame.

• A. $HCl$
• B. ${NH}_3$
• C. $N_2$
• D. $H_2$
• E. ${CO}_2$

Answer 1

Answer: (D)

$H_2$

$2H^{+}+2e^{-}\to H_2$

the evolved hydrogen gas is not very soluble in water and water remains neutral and hydrogen in air burns with blue flame.