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Colour of CrO(4)^(2-)(aq.) is not change...

Colour of `CrO_(4)^(2-)`(aq.) is not changed by

A

dil. HCl

B

`NH_(3)` solution

C

`CH_(3)COOH`

D

`NO_(2)` gas

Text Solution

Verified by Experts

The correct Answer is:
B
`underset(("yellow"))(CrO_(4)^(2-)(aq.)) underset(pH gt 7" (Basic)")overset("(Acidic) "pH lt 7) hArr underset(("orange"))(Cr_(2)O_(7)^(2-)(aq.))`
`NH_(3)` being basic in solution, does not change yellow colour of `CrO_(4)^(2-)(aq.)`.
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