MyQuestionIcon

1

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Potassium Permanganate

How will you ...

Question

How will you pure potassium permanganate crystals from its ore, pyrolusite? Give the reaction involve.

Open in App

Solution

The ore is pyrolusite - $M n O_{2}$
Look the given equation,
${3 K}_{2} M n O_{4} + 4 H C l ⟶ 2 K M n O_{4} + M n O_{2} + 2 H_{2} O + 4 K C l$
Fusion of $M n O_{2}$ with $K O H$ and oxidizing agent results in potassium manganate (green mass) which disproportionates to give potassium permanganate.

Suggest Corrections

thumbs-up

0

Similar questions

Q. How will you obtain pure potassium permanganate

(K M n O_{4})

crystals from its ore, pyrolusite? Give the steps involved and the reactions.

1.6 g

of pyrolusite was treated with

60 m L

of normal oxalic acid and some

H_{2} S O_{4}

. The oxalic acid left undecomposed was made up to

250 m L, 25 m L

of this solution required

32 m L

0.1 N

potassium permanganate

(K M n O_{4})

. Calculate the percentage of pure

M n O_{2}

Q. How is potassium dichromate prepared from a sample of chromite ore? Give balanced equations for the chemical reactions involved.

Q. On reaction with potassium permanganate, thiosulphate gives :

Q. How will you convert potassium chromate to potassium dichromate ? Mention the colour change involved in the reaction.

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Potassium Permanganate

CHEMISTRY

Watch in App

explore_more_icon

Explore more

Potassium Permanganate

Standard XII Chemistry

Join BYJU'S Learning Program

CrossIcon