S aiso exothermic23. When water is added to a white powder 'A', vigoro

1.	S aiso exothermic23. When water is added to a white powder 'A', vigorousreaction takes place and a large amount of heat isreleased. 'A' is also used for white washing. IdentifyA, write a chemical equation for its reaction withwater and name the product.(CBSE Sample Paper 2011)
Answer» A is quick lime (Cao)reaction= quick lime + water =slaked lime ... CaO+H2O =Ca(OH)2

S aiso exothermic23. When water is added to a white powder 'A', vigorousreaction takes place and a large amount of heat isreleased. 'A' is also used for white washing. IdentifyA, write a chemical equation for its reaction withwater and name the product.(CBSE Sample Paper 2011)

Answer»

A is quick lime (Cao)reaction= quick lime + water =slaked lime ...

CaO+H2O =Ca(OH)2