Question

A water insoluble calcium compound M on reacting with dil. H2SO4 released a
colorless and odorless gas N with brisk effervescence. When gas N is passed
through lime water, lime water turns milky and again forms compound M.
On passing excess of gas N through lime water, milkiness disappears and a
compound O is formed.
a) Identify M, N and O
b) Write the chemical equations for the reactions involved.
c) Predict the nature of the gas N.

PLSSSSSSSSS ANSWERRR !! PLSSS DONT TROLL !!

Answer 1

Answer:

a)

M=Calcium carbonate

N= Carbon dioxide

O= Calcium hydrogen Carbonate

b)

Calcium Carbonate + Sulphuric Acid ------ Calcium Sulphate + Carbon dioxide + Water

Carbon dioxide + Calcium hydroxide ------- Calcium carbonate + water

In excess Carbon dioxide

Calcium carbonate + water + Carbon dioxide ------- Calcium hydrogen carbonate.

C)

It comes from the reaction of the Calcium Carbonate and Sulphuric Acid

Explanation:

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