The equivalent weight of KIO_3 in the reactio | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(B) In the given reaction: $2Cr(OH)_3 + 4OH^{-} + KIO_3 	o 2CrO_4^{2-} + 5H_2O + KI$First,determine the change in oxidation state for the iodine atom

Vedclass · Accepted Answer

$\frac{Molecular 	ext{ } weight}{6}$

Vedclass · Answer

(B) In the given reaction: $2Cr(OH)_3 + 4OH^{-} + KIO_3 	o 2CrO_4^{2-} + 5H_2O + KI$First,determine the change in oxidation state for the iodine atom in $KIO_3$.In $KIO_3$,the oxidation state of $I$ is $+5$.In $KI$,the oxidation state of $I$ is $-1$.The change in oxidation state is $|5 - (-1)| = 6$.However,looking at the stoichiometry,$1$ mole of $KIO_3$ produces $1$ mole of $KI$.The $n$-factor for $KIO_3$ is $6$.Wait,let us re-evaluate the reaction: $I^{+5} + 6e^{-} 	o I^{-1}$. The $n$-factor is $6$.Therefore,the equivalent weight is $\frac{Molecular 	ext{ } weight}{6}$.Correcting the provided option: The correct answer is $B$.

The equivalent weight of $KIO_3$ in the reaction $2Cr(OH)_3 + 4OH^{-} + KIO_3 \to 2CrO_4^{2-} + 5H_2O + KI$ is

Similar Questions

In the reaction $2[Fe(CN)_6]^{3-} + H_2O_2 + 2OH^{-} \rightarrow 2[Fe(CN)_6]^{4-} + 2H_2O + O_2$,what is the equivalent weight of the reductant? $(Fe = 56, C = 12, N = 14, O = 16, H = 1)$

Assign $A, B, C, D$ from the given type of reaction.
$NaNO_2 + FeSO_4 + H_2SO_4 \longrightarrow [Fe(H_2O)_5NO]SO_4 + Na_2SO_4 + Fe_2(SO_4)_3 + H_2O$
Identify the type of reaction for the formation of the brown ring complex.

When $SO_{2}$ is passed through acidified $K_{2}Cr_{2}O_{7}$,the process that takes place is

Only $2 \ mL$ of $KMnO_4$ solution of unknown molarity is required to reach the end point of a titration of $20 \ mL$ of oxalic acid $(2 \ M)$ in acidic medium. The molarity of $KMnO_4$ solution should be . . . . . . . . . $M$.

Write the balanced chemical equations for the following reactions:
$(1)$ Reaction between $MnO_4^-$ and $I^-$ in neutral or faintly alkaline solution.
$(2)$ Reaction between $MnO_4^-$ and $C_2O_4^{2-}$ in acidic medium $(H^+)$.

Vedclass Test Series

Exam Paper Generator

Online Exam Module