A local magician was showing magic in a village street. He took egg shell and poured a solution over it.
A local magician was showing magic in a village street. He took egg shell and poured a solution over it. As a result, effervescence were formed. When he took a burning matchstick over it, it went off :
(a) Identify the solution poured and the substance present in egg shell.
(b) What is the reason behind effervescence ?
(c) Write its balanced chemical equation.
(d) Give the common name of the substance present in the egg shell.
9 views
1 Answers
(a) Solution is an acid. Substance in egg shell is calcium carbonate.
(b) Effervescence is due to the evolution of CO2 gas.
(c) 2HNO3+CaCO3→2Ca(NO3)2 + H2O + CO2
(d) Lime stone.
9 views
Answered