In acidic medium, dichromate ion oxidizes ferrous ion to ferric ion. If the gram molecular weight of potassium dichromate is $294 g$ , its equivalent weight is:

294

No worries! We‘ve got your back. Try BYJU‘S free classes today!

147

No worries! We‘ve got your back. Try BYJU‘S free classes today!

49

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

24.5

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is C $49$
In acidic medium, $K_{2} C r_{2} O_{7}$ acts as a strong oxidizing agent and itself gets reduced to $C r^{3 +}$

$C r_{2}^{+ 6} O_{7}^{2 -} + 6 e^{-} \to 2 C r^{3 +}$

Equivalent weight of $K_{2} C r_{2} O_{7} = \frac{M o l e c u l a r W e i g h t}{6} = \frac{294}{6} = 49$

Hence correct answer is option C.

Suggest Corrections

Similar questions

294 g

$x S n^{2 +} + y C r_{2} O_{7}^{2 -} + z H^{+} \to a S n^{4 +} + b C r^{3 +} + c H_{2} O$

({C r}_{2} O_{7}^{- 2})

{C r}^{+ 3}

K_{2} {C r}_{2} O_{7}

x S n^{2 +} + y C r_{2} O_{7}^{2 -} + z H^{+} \to a S n^{4 +} + b C r^{3 +} + c H_{2} O

Join BYJU'S Learning Program