$C_{2} O_{7}^{- 2} + I^{-} + H^{+} \to {C r}^{+ 3} + l_{2} + H_{2} O$
The equivalent weight of the reductant in the above equation is :- $(A t . w t .$ of $C r = 52, I = 127)$

26

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

127

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

63.5

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

36

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

Open in App

Solution

The correct option is D $36$
$+ 6 C r_{2} O_{7}^{2 -} ⟶ 2 C r^{3 +} \Rightarrow R e d u c t i o n$
$C r_{2} O_{7}^{2 -} ⟶ 2 C r^{3 +} + 7 H_{2} O$
$C r_{2} O_{7}^{2 -} + 14 H^{+} ⟶ 2 C r^{3 +} + 7 H_{2} O$
$⟹ C r_{2} O_{7}^{2 -} + 14 H^{+} + 6 e^{-} ⟶ 2 C r^{3 +} + 7 H_{2} O$
$⟹ (2 I^{-} ⟶ I_{2} + 2 e^{-}) 3$
$⟹ 6 I^{-} ⟶ 3 I_{2} + 6 e^{-}$
So, equivalent weight of $C r_{2} O_{7}^{2 -} = \frac{216}{6} = 36$

Suggest Corrections

Similar questions

C r_{2} O_{7}^{- 2} + I^{-} + H^{+} \to C r^{+ 3} + I_{2} + H_{2} O

C r_{2} O_{7}^{2 -} H^{+} - - \to C r^{3 +}

C r_{2} O_{7}^{2 -}

C r_{2} O_{7}^{2 -}^{+} C r^{3 +}

C r_{2} O_{7}^{2 -}

C r_{2} O_{7}^{2 -}

M g / m o l

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

{C r}^{+ 3}

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

A g^{+}, N i^{+ 2}

C r^{+ 3}

A g (A t . w t . = 108), N i (A t . w t . = 59) a n d C r (A t . w t . = 52)

\begin{matrix} A g (i n g m) & N i (i n g m) & C r (i n g m) a) & 108 & 59 & 52 b) & 108 & 29.5 & 17.3 c) & 36 & 19.6 & 17.3 d) & 108 & 108 & 108 \end{matrix}

Join BYJU'S Learning Program