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Which of the following samples will react fastest with di...

Which of the following samples will react fastest with dilute trioxonitrate (V) acid?

A.

5 g of lumps of CacO₃ at 25°C

B.

5 g of powered CacO₃ at 25°

C.

5 g of lumps of CaCO₃ at 50°C

D.

5 g of powered CaCO₃ AT 50°C

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Correct answer is D

No explanation has been provided for this answer.

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