NEET 2009 Chemistry question

What is the in the final solution prepared by mixing 20.0 mL of 0.050 M HCl with 30.0 mL of 0.10 M ?

Answer: (4)

Solution

Moles of from HCl mmol. gives 2 per formula unit: moles of mmol. After neutralisation, left mmol in a total volume of

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Question ID VK-090331