Question on: JAMB Chemistry - 1990

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 Option: D

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