Question

A water insoluble substance x on reaction with dil. HCl released a colour less odourless gas .name the substance x

Answer 1

Hey


Calcium Carbonate is the water insoluble substance x on reaction with dil. HCl releases a colour less odourless gas.

It's chemical formula is CaCO3.

It turns the lime water milky.

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THANKS

Answer 2

The substance X is calcium carbonate CaCO3. The gas released is Carbondioxide CO2.
So,
CaCO3+Hcl--------> CaCl2 +H2O+ CO2.