A metal is treated with dilute sulphuric acid. The gas evolved is collected by the method shown in the figure :
(i) Name the gas.
(ii) Is the gas soluble or insoluble in water ?
(iii) Is the gas lighter or heavier than air ?
(iv) How will you test the gas ?
(v) If the metal used above is zinc then write the chemical equation for the evolution of gas.
(vi) Write one industrial use of the gas evolved.
