Question

9. A compound 'X' is bitter to taste. It is a compound of washing powder and reacts with dilute
HCl to produce brisk effervescence due to a colourless and odourless gas Y' which turns lime
water milky due to the formation of 'Z' when excess of CO2 is passed, milkiness disappears due
to formation of 'P'. Identify 'X', 'Y', 'Z' and 'P'. Write the equations involved in the formation of
Y, Z and P.​

Answer 1

Answer:

since X is bitter to taste it is a base and if its a a compound of bleaching powder it is calcium oxychloride....

the colorless and odourless gas Y which turns lime water milky is carbon dioxide

the lime water turns milky due to the formation of Z which is calcium carbonate which is a white precipitate

the milkiness disappear due to the formation of P which is calcium bicarbonate caH(CO3)2 which is soluble in water

Y is formed by : - Na2CO3 + HCL -> NaCL +H2O+CO2

formation of Z:- Ca(OH)2 +CO2-> CaCO3+H2o

formation of P :- CaCO2+H2O+CO2-> Ca(HCO3)2

Answer 2

Answer:

X – Sodium Carbonate

Y – Carbon Dioxide

Z – Calcium Carbonate

P - Calcium Hydrogen Carbonate