Question

Write an example of metal - hydrogen displacement reaction with relevant equation. I tell it soon please . I will mark it brainliest
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Answer 1

Answer:

Zn + H2SO4 -----> ZnSO4 + H2

Explanation:

Zinc is more reactive than Hydrogen, so it displacent H2 from H2SO4

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Answer 2

single-replacement reaction is a reaction in which one element replaces a similar element in a compound. The general form of a single-replacement (also called single-displacement) reaction is:

A+BC→AC+B(11.7.2)

In this general reaction, element  A  is a metal and replaces element  B , also a metal, in the compound. When the element that is doing the replacing is a nonmetal, it must replace another nonmetal in a compound, and the general equation becomes:

Y+XZ→XY+Z(11.7.3)

where  Y  is a nonmetal and replaces the nonmetal  Z  in the compound with  X .

Metal Replacement

Magnesium is a more reactive metal than copper. When a strip of magnesium metal is placed in an aqueous solution of copper (II) nitrate, it replaces the copper. The products of the reaction are aqueous magnesium nitrate and solid copper metal.

Mg(s)+Cu(NO3)2(aq)→Mg(NO3)2(aq)+Cu(s)(11.7.4)

This subcategory of single-replacement reactions is called a metal replacement reaction because it is a metal that is being replaced (copper).

Hydrogen Replacement

Many metals react easily with acids and when they do so, one of the products of the reaction is hydrogen gas. Zinc reacts with hydrochloric acid to produce aqueous zinc chloride and hydrogen (figure below).

Zn(s)+2HCl(aq)→ZnCl2(aq)+H2(g)(11.7.5)

In a hydrogen replacement reaction, the hydrogen in the acid is replaced by an active metal.

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