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Dilute hydrochloric acid is added to granulated zinc taken in a test tube.
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30/10/2020 4:46 pm
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Dilute hydrochloric acid is added to granulated zinc taken in a test tube. The following observations are recorded. Point out the correct observation.
(a) The surface of metal becomes shining
(b) The reaction mixture turns milky
(c) Odour of a pungent-smelling gas is recorded
(d) A colourless and odourless gas is evolved
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30/10/2020 4:53 pm
(d) Zinc metal reacts with dil. HCl to form zinc chloride and bubbles of colourless and odourless hydrogen gas is evolved.
Zn(s) + 2HCl(aq) + ▵ → ZnCl2(aq) + H2(g)
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class 10 (8819)
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cbse (15084)
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ncert exemplar (1417)
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chemical reactions (286)
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equations (286)
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