Q. Which of the following metal carbonates is decomposed on heating?
A) ${{Na}_{2}CO}_{3}$
B) ${MgCO}_{3}$
C) $K_{2}{CO}_{3}$
D) ${Rb}_{2}{CO}_{3}$
Explanation
(b)
${MgCO}_{3}\ \overset{\ \ \ \ \ Heat\ \ \ \ }{\rightarrow}\ MgO + {CO}_{2}$
The metal oxide of which is stable, has unstable carbonate
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.