The oxidation number of Mn in the product of | vedclass

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

Question

(A) The reaction for the alkaline oxidative fusion of manganese dioxide is:$2MnO_2 + 4KOH + O_2 \rightarrow 2K_2MnO_4 + 2H_2O$The product formed is po

Vedclass · Accepted Answer

$6$

Vedclass · Answer

(A) The reaction for the alkaline oxidative fusion of manganese dioxide is:$2MnO_2 + 4KOH + O_2 ightarrow 2K_2MnO_4 + 2H_2O$The product formed is potassium manganate,$K_2MnO_4$,which contains the manganate ion,${MnO_4}^{2-}$.To find the oxidation state of $Mn$ in ${MnO_4}^{2-}$:Let the oxidation state of $Mn$ be $x$.$x + 4 	imes (-2) = -2$$x - 8 = -2$$x = +6$Thus,the oxidation number of $Mn$ in the product is $6$.

The oxidation number of $Mn$ in the product of alkaline oxidative fusion of $MnO_2$ is

Similar Questions

Which alloy exhibits the property of shape memory?

The colour of the bead in the borax bead test is mainly due to the formation of:

The transition element of $III-B$ group which forms an alum isomorphic with $Al_2(SO_4)_3 \cdot 18H_2O$ is $Sc$. The color of the compound $Sc_2(SO_4)_3 \cdot (NH_4)_2SO_4 \cdot 24H_2O$ is:

Which substance is used to produce very low temperatures by magnetic effects?

Sodium chromate,$Na_2CrO_4$ is made commercially by

Vedclass Test Series

Exam Paper Generator

Online Exam Module