Home
Class 11
CHEMISTRY
In acidic medium dichromate ion oxidises...

In acidic medium dichromate ion oxidises ferrous ion to ferric ion. If the grammolecular weight of potassium dichromate is 294 gm, its equivalent weight is

A

294

B

147

C

49

D

`24.5`

Text Solution

Verified by Experts

The correct Answer is:
C
`Cr_(2)O_(7)^(2-)+Fe^(+2)rarrCr^(+3)+Fe^(+3)`
Change in oxidation state = `6-3=3`
No. of Cr = 2 implies n-factor = 6
`therefore E=(294)/(6)=49`
Promotional Banner

Similar Questions

Explore conceptually related problems

Molecular weight of orthophosphoric acid is M. Its equivalent weight is

Molecular weight of orthophosphoric acid is M. Its equivalent weight is

What is the equivalent weight of potassium dichromate in acidic medium ?

When Ferrous sulphate acts as reductant, its equivalent weight is

Incorrect statement about dichromate ion is

What is the magentic moment of Ferrous & Ferric ions.

What is the magentic moment of Ferrous & Ferric ions