নিম্নের মিশ্রণগুলো থেকে বাফার দ্রবণটি চিহ্নিত করঃ

A 0.2M 10mL CH3COOH + 0.2M 10ml NaOH

B 0.2M 10mL CH3COOH + 0.1M 10ml NaOH

C 0.1M 10mL CH3COOH + 0.2M 10ml NaOH

D 0.2M 10mL HCl + 0.1M 10ml NaOH

Solution

Correct Answer: Option B

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