(a) Name a metal for each case : (i) It does not react with cold as well as hot water but reacts with steam. (ii) It does not react with any physical state of water. (b) When calcium metal is added to water, the gas evolved does not catch fire but the same gas evolved on adding sodium metal to water catches fire. Why is it so ? Lakhmir Singh Chemistry Class 10

(a) Name a metal for each case : (i) It does not react with cold as

1.	(a) Name a metal for each case : (i) It does not react with cold as well as hot water but reacts with steam. (ii) It does not react with any physical state of water. (b) When calcium metal is added to water, the gas evolved does not catch fire but the same gas evolved on adding sodium metal to water catches fire. Why is it so ? Lakhmir Singh Chemistry Class 10
Answer» HOLA.....3- When CALCIUM metal is added to water and when sodium metal is added to water in both of the cases hydrogen gas is evolved but the difference is that when the calcium metal is added to water there is not much gas involved or RELEASED which is INSUFFICIENT for hydrogen to catch FIRE or to burn.Hope it helps Uh @5queen36.