Assertion (A): K2CO3 cannot be obtained by a process analogous to the Solvay process using KCl. Reason (R): KHCO3 is much more soluble in water than NaHCO3 and does not precipitate from the reaction mixture.

Both A and R are true and R is the correct explanation of A

Both A and R are true but R is not the correct explanation of A

JEE Advanced levelSingle correct optionDifficulty 3 of 3sb202

Assertion (A): $K X_{2} CO X_{3}$ cannot be obtained by a process analogous to the Solvay process using KCl. Reason (R): $KHCO X_{3}$ is much more soluble in water than $NaHCO X_{3}$ and does not precipitate from the reaction mixture.

The Solvay route relies on precipitation of the hydrogencarbonate, which is then calcined to the carbonate.

KHCO X_{3}

stays in solution because it is far more soluble than

NaHCO X_{3}

, so no solid is available to calcine. R explains A.