Question

Assertion :$K_{2}C{r}_2{O}_7$ is generally preferred over $N{a}_{2}C{r}_2{O}_7$ in volumetric analysis although both are oxidizing agents. Reason: $N{a}_{2}C{r}_2{O}_7$ is deliquescent in nature.

• A. Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
• B. Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
• C. Assertion is correct but Reason is incorrect
• D. Both Assertion and Reason are incorrect

Answer 1

The correct option is A Both Assertion and Reason are correct and Reason is the correct explanation for Assertion

Option (A) is correct.

$N{a}_{2}C{r}_2{O}_7$ is deliquescent in nature while $K_{2}C{r}_2{O}_7$ is not hydroscopic, not reacting during weighing, soluble easily and undergoes stoichiometric reaction. Hence, $K_{2}C{r}_2{O}_7$ is generally preferred over $N{a}_{2}C{r}_2{O}_7$ in volumetric analysis although both are oxidizing agents