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Molarity

100 mL of a 0...

Question

100 mL of a 0.2 M $H_{2} S O_{4}$ solution, 200 mL of a 0.1 M $H N O_{3}$ solution and 300 mL of a 0.2 M NaOH solution are mixed. The resultant solution will be

A

Acidic

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B

Basic

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C

Neutral

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D

Can't say

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Solution

The correct option is C Neutral
Milliequivalents of $H_{2} S O_{4} = 100 \times 0.2 \times 2 = 40$
Milliequivalents of $H N O_{3} = 200 \times 0.1 \times 1 = 20$
Total milliequivalents of the acid = 40 + 20 = 60
Milliequivalents of $N a O H = 300 \times 0.2 \times 1 = 60$
Milliequivalents of the base = milliequivalents of acid
Hence, the resultant solution will be neutral.

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