Question

Assertion :$5.0$ mol of ferrous oxalate are completely oxidised by $2.5$ moles of acidic solution of $K_{2}C{r}_2{O}_7$. Reason: $n$-factor of ferrous oxalate against dichromate is $3$.

• 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

As we know,
mEq of $Fe{C}_2{O}_4=$ mEq of $C{r}_2{O}_7^{2-}$
$(n=3)$ $(n=6)$
$5\times 3=2.5\times 6$
($n$ factor for $Fe{C}_2{O}_4=3$)
So, $5.0$ mol of ferrous oxalate are completely oxidised by $2.5$ moles of acidic solution of $K_{2}C{r}_2{O}_7$.