Which can act as buffer? Options: A . &nbspNH₄Cl + HCl B . &nbspCH₃COOH + H₂CO₃ C . &nbsp40ml of 0.1M NaCN + 20ml of 0.1M HCN D . &nbspNaCl + NaOH

Which can act as buffer?

Question

Which can act as buffer?

Options:

A . NH₄Cl + HCl

B . CH₃COOH + H₂CO₃

C . 40ml of 0.1M NaCN + 20ml of 0.1M HCN

D . NaCl + NaOH

Answer: Option C
Answer: (c).40ml of 0.1M NaCN + 20ml of 0.1M HCN

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