Question

what happens when lime stone reacts with nitric acid and how will you test for the gas evolved ​

Answer 1

Answer:

Sulphur-di-oxide gas is evolved. Colourless, gas with smell of burning sulphur. It turns acidified potassium dichromate orange to green.

Hydrogen sulphide gas is evolved. Colourless gas with smell of rotten eggs. It turns lead acetate paper black.

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