Q. The gas evolved on heating alkali formate with soda-lime is
A) $CO$
B) $CO_{2}$
C) Hydrogen
D) Water vapour
Explanation
(c)
Generally soda-lime removes $CO_{2}$ from an acid but in case of alkali formate it gives alkali carbonate and hydrogen.
$HCOONa + NaOH\overset{\ \ \ \ CaO\ \ \ }{\rightarrow}Na_{2}CO_{3} + H_{2}\$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.