WRITE THE LABORATORY PREPARATION OF HYDROGEN?
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Hydrogen can be obtained in laboratory by the action of dilute sulphuric acid or dilute hydrochloric acid on zinc granules.Take zinc granules in a woulf's bottle and fix a two holed cork. now from one hole fit a thistle funnel and from second hole of cork fix delivery tube. Now add dil.sulphuric acid through thistle funnel.Dil.H2SO4 reacts with zinc to liberate H2 gas. this released gas is collected by downward displacement of water. Dil. H2SO4 + Zn →ZnSO4 +H2 ↑ 
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hEyA here u go....
LABORATORY PREPARATION OF HYDROGEN
Hydrogen is prepared in the lab by the action of acids on metal’s dilute.
Zn+H2SO4——> ZnSO4+H2
Zn+ 2HCl—–>ZnCl2+H2
Sulphuric acid is added to granulated zinc. Zinc sulphate or zinc chloride is formed in solution and the hydrogen that is evolved is collected over water in a trough.
hope it helps you....
LABORATORY PREPARATION OF HYDROGEN
Hydrogen is prepared in the lab by the action of acids on metal’s dilute.
Zn+H2SO4——> ZnSO4+H2
Zn+ 2HCl—–>ZnCl2+H2
Sulphuric acid is added to granulated zinc. Zinc sulphate or zinc chloride is formed in solution and the hydrogen that is evolved is collected over water in a trough.
hope it helps you....
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