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JEE CHEMISTRY MCQ: SOME BASIC CONCEPTS OF CHEMISTRY

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10 gCaCO310 \mathrm{~g} \mathrm{CaCO}_3 were dissolved in 250 mL250 \mathrm{~mL} of 100M100 \mathrm{M} HCl\mathrm{HCl} or the solution was boiled. What volume of 2MKOH2 \mathrm{M} \mathrm{KOH} would be required to equivalence point after boiling? Assume no change in volume during boiling.
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Correct option: B
25 mL25 \mathrm{~mL}
Option B (25 mL) is correct because it is the volume of KOH required to neutralize the remaining HCl after the reaction with CaCO₃.

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