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Excess of carbon dioxide is passed throu...

Excess of carbon dioxide is passed through 50 mL of 0.5 M calcium hydroxide solution. After the completion of the reaction, the solution was evaporated to dryness. The solid calcium carbonate was completely neutralised with 0.1 N hydrochloric acid. The volume of hydrochloric acid required is (Atomic mass of calcium = 40)

A

300 `cm^3`

B

200 `cm^3`

C

500 `cm^3`

D

400 `cm^3`

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The correct Answer is:
C
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