Home
Class 12
CHEMISTRY
When SO2 is passed through the acidic so...

When `SO_2` is passed through the acidic solution of `K_2 Cr_2 O_7`

A

the solution becomes blue

B

the solution becomes colourless

C

`SO_2 `is reduced

D

green `Cr_2 (SO_4)_3` is formed

Text Solution

Verified by Experts

The correct Answer is:
D
`SO_2` turns acidified `K_2 Cr_2 O_7` solution green due to the formation of chromic sulphate `Cr_2 (SO_4)_3` .
`K_2 Cr_2 O_7 + H_2 SO_4 + 3SO_2 to `
`K_2 SO_4 + Cr_2 (SO_4)_3 + H_2 O`
Promotional Banner

Topper's Solved these Questions

  • ATOMIC STRUCTURE

    ARIHANT PUBLICATION JHARKHAND|Exercise EXAM BOOSTER FOR CRACKING EXAM |66 Videos

Similar Questions

Explore conceptually related problems

When SO_2 gas is passed through an acidified solution of K_2 Cr_2 O_7 , the solution turns ___ in colour.

When SO_2 is passed through acidified solution of H_2S

When SO_(2) gas is passed through an acidified solution of K_(2)Cr_(2)O_(7) the orange colour of the solution changes to

When SO_2 is passed through cupric chloride solution

When SO_2 is passed through a solution of H_2 S in water :

H_(2)S gas is passed through an acidic solution of K_(2)Cr_(2)O_(7) . The solution turns milky, why?

When SO_2 is passed through acidified K_2Cr_2O_7 solution

When H_(2)O_(2) is added to a acidified solution of K_(2)Cr_(2)O_(7) :