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Question

Na2CO3.H2O when exposed to air looses water of crystallization and gives finally

A

Na2CO3.4H2O

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B

Na2CO3.H2O

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C

Na2CO3.7H2O

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D

Na2CO3.9H2O

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Solution

The correct option is B

Na2CO3.H2O


Na2CO3 is efflorescent and looses 9 water molecules on exposure to air

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