Question

please answer fastly​

Answer 1

Answer :-

a. Calcium Carbonate CaCO3

Expln:-

When excess of carbon dioxide is passed in lime water, calcium carbonate

is converted to calcium bicarbonate

which is soluble, hence the milkiness

due to calcium carbonate disappears.

Answer 2

Answer:

option B

Explanation:

because when carbon dioxide is passed in excess calcium carbonate (which appears milky)gets converted into calcium hydrogen carbonate which is soluble , hence the milkyness disappears.

i hope it will help you