Question

class 10th science.
ques number 7th.​

Answer 1

A is CO2 and B is Ca(OH)2

Reaction:-

Ca(OH)2 + CO2. --------------->CaCO3 + H2O

calcium carbonate is a milky and is white precipitate.

When dry calcium chloride is taken and Cl2 gas is passed it froms compound C which is bleaching powder.

Ca(OH)2 + Cl2 ------------->CaOCl2 + H2O

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Answer 2

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