Conc. $H_{2} S O_{4}$ is added to a crystal of hydrated copper sulphate what happened?

changing its color from white to blue powder

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changing its color from blue to white powder

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changing its color from blue to black powder

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changing its color from black to blue powder

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Solution

The correct option is B changing its color from blue to white powder
Concentrated sulphuric acid is used as a dehydrating agent which added to hydrated copper sulphate dehydrates it by changing its color from blue to white powder.

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