ICSE Class 10 Answered
chemical eqn of preparing hydrogen
Asked by karanamvasu2 | 14 Jan, 2019, 07:24: AM
Expert Answer
Hydrogen is prepared in the laboratory by the action of dilute hydrochloric acid or dilute sulphuric acid on granulated zinc.
Reaction:
Metal + Dilute acid → Salt + Hydrogen Zn + 2HCl → ZnCl2 + H2 ↑ Zn + H2SO4 → ZnSO4 + H2 ↑ |
Collection of gas: Hydrogen gas is collected by downward displacement of water.
Answered by Ramandeep | 14 Jan, 2019, 11:08: AM
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