Question

When charcoal is treated with hot and conc. sulphuric acid,the gas evolved are:

• A. $C{O}_2$
• B. $S{O}_2$
• C. $O_2$
• D. $H_2$

Answer 1

Answer: (A), (B)

The correct options are
A $C{O}_2$
B $S{O}_2$

Charcoal + $(Conc.)$ $H_{2}S{O}_4$$⟶$$C{O}_2\uparrow +H_{2}O+S{O}_2\uparrow$