Question
How can you prove that hydrochloric acid contain :
Hydrogen

Answer

On reaction with metals, hydrochloric acid forms respective chlorides and liberates hydrogen.
$Zn +2 HCl \rightarrow ZnCl _2+ H _2 \uparrow$

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free