Question

Assertion (A) : In the reaction, Na$_2$SO$_4$ + BaCl$_2$ $\longrightarrow$ BaSO$_4$ + 2NaCl, sodium chloride is precipitated.
Reason (R) : When an aqueous solution is added to another aqueous solution, an insoluble substance is formed, which is called precipitate.

• A. Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of the Assertion (A).
• B. Both Assertion (A) and Reason (R) are true, but Reason (R) is not the correct explanation of the Assertion (A).
• C. Assertion (A) is true, but Reason (R) is false.
• D. Assertion (A) is false, but Reason (R) is true.

Hint:

Precipitation reaction: Insoluble salt (BaSO$_4$) precipitates, not the soluble salt (NaCl).

Answer 1

The Correct Option is C

The double displacement reaction produces barium sulphate (BaSO$_4$) as a solid precipitate, not sodium chloride. Sodium chloride stays dissolved in water. The Assertion is accurate regarding the reaction but misidentifies the precipitate. The Reason correctly defines a precipitate as an insoluble product in an aqueous reaction, but it doesn't accurately explain the incorrect Assertion. Consequently, the Assertion is correct, while the Reason is incorrect.