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Which can act as buffer?...

Which can act as buffer?

A

`NH_4Cl + NH_4OH`

B

`CH_3COOH + CH_3COONa`

C

40 ml of 0.1 M NaCN + 20 ml of 0.1 M HCl

D

All of these

Text Solution

Verified by Experts

The correct Answer is:
D
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