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(i) A local magician was showing magic i...

(i) A local magician was showing magic in a village street. He took egg shell and poured a solution over it. As a result, effervescences were formed. When he took a burning matchstick over it, it went off.
(a) Identify the solution poured and the substance present in eff shell.
(b) What is the reason behind effervescences?
( c) Write its balanced chemical equation.
(d) Give the common name of the substance present in the egg shell.
(ii) Draw a labelled diagram to show that acid solution in water conducts electricity.

Text Solution

Verified by Experts

(i) (a) Solution is an acid. Substance in egg shell is calcium carbonate.
(b) Effervescence is due to the evolution of `CO_2` gas.
( c) `2HNO_3+CaCO_3 to 2Ca(NO_3)_2+H_2O+CO_2`
(d) Lime stone.
(ii)
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