Question

a metal is treated with dilute H2Sa4
the gas evolve is collected by the method. answer
name the gas.
which method is used for collection of gas.
is the gas soluble or insoluble in water.
why gas is lighter than air.

Answer 1

easy question you are asking

Answer 2

the name of the gas is...hydrogen...


the method of collection of gas.....by water displacement in a gas tube


the evolved gas is not soluble in water


hydrogen gas is lighter than air because its molecular mass is lower than the average molecular mass of air( i am not 100% sure about this last answer)