Question

Which gas is liberated when ethanoic acid reacts with bicarbonates?

• A. $C{O}_2$
• B. $H_2$
• C. $N_2$
• D. $O_2$

Answer 1

The correct option is A $C{O}_2$

$C{H}_{3}COOH+NaHC{O}_3\to C{H}_{3}CO{O}^{-}N{a}^{+}+H_{2}O+C{O}_2\uparrow$

When this gas is passed through lime water, it turns milky. The milky colour of lime water confirms that the gas is carbon dioxide $\left(C{O}_2\right)$.