Question

This is chemistry question of class 10 chapter number 2

Answer 1

hi mate here is ur answer

the gas evolved in the reaction is carbondioxide (co2)

1. when the gas is passed through the lime water solution the lime water turns milky and white ppt is formed

2. reaction is as follows:

Ca(OH)2 + CO2 =   CaCO3 + H2O

HOPE IT HELPS!!!

Answer 2

(a). limewater turns milky day today formation of calcium carbonate.