Chemistry
For laboratory preparation of hydrogen, give the following
(a) materials used
(b) method of collection
(c) chemical equation
(d) fully labelled diagram.
Hydrogen
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Answer
(a) Granulated zinc, dilute hydrochloric acid or dil. sulphuric acid.
(b) It is collected by the downward displacement of water.
(c) Zn + 2HCl ⟶ ZnCl2 + H2 ↑
(d) Labelled diagram of laboratory preparation of hydrogen:
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