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Selina Solutions Class 9 Chemistry Solutions for Exercise 1B in Chapter 1 - Chapter 1 The Language Of Chemistry
Question 1 Exercise 1B
State the information conveyed by the following equation.
Zn(s) + 2HCl(aq) ZnCl2(aq) + H2
Answer:
This chemical equation shows a 'single displacement reaction', in which a non-metal is displaced by a metal. Here,
non-metal is hydrogen which is evolved as gas. It is displaced by the metal zinc.In the given equation - Zn(s) +
2Hcl(aq)-----> ZnCl2(aq) + H2(g), Zinc (Zn) is a reductant metal that displaces hydrogen (H2) from aqueous
solution of Hydrochloric acid (HCl).
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