The reaction, Zn + 2HCl → ZnCl2+ H2is an example of:a)Displacement reactionb)Combination reactionc)Double displacement reactiond)Decomposition reactionCorrect answer is option 'A'. Can you explain this answer?

Question

The reaction, Zn + 2HCl &#8594; ZnCl2+ H2is an example of:a)Displacement reactionb)Combination reactionc)Double displacement reactiond)Decomposition reactionCorrect answer is option 'A'. Can you explain this answer?

Answer

This is a metal/acid reaction if carried out in aqueous solution.

It is also a displacement reaction where 1 atom of Zinc displaces 2 H+ ions

and it is a redox reaction as the Zn atom loses electrons (it is OXIDISED) and the 2 H+ ions gain electrons (they are REDUCED)

Answer

#as we know in displacement reaction, high reactive metals replaces less reactive metals.

#in this reaction the high reactive metal i.e zinc replaces hydrogen from HCl so, it is a displacement reaction.

Answer

Here zinc is more reactive than that of hydrogen so it displaces hydrogen from its compound HCL...therefore,it is a displacement reaction....ans(a)...it is also some other reactions which are not given in the options which are explained by aditi correctly....

Answer

It is a displacement reaction

》The higher reactive metal zinc is replacing the lesser reactive metal hydrogen from its compound and formed zinc chloride

Answer

It is a displacement reaction

》The higher reactive metal zinc is replacing the lesser reactive metal hydrogen from its compound and formed zinc chloride

Answer

Displacement reaction:
A displacement reaction is a type of chemical reaction in which an element reacts with a compound and displaces another element from it. In this reaction, one element is replaced by another element. The general equation for a displacement reaction is A + BC → AC + B.

Combination reaction:
A combination reaction is a type of chemical reaction in which two or more substances combine to form a single product. The general equation for a combination reaction is A + B → AB.

Double displacement reaction:
A double displacement reaction is a type of chemical reaction in which two compounds react and exchange ions to form two new compounds. The general equation for a double displacement reaction is AB + CD → AD + CB.

Decomposition reaction:
A decomposition reaction is a type of chemical reaction in which a compound breaks down into two or more simpler substances. The general equation for a decomposition reaction is AB → A + B.

Explanation:
The given reaction is: Zn + 2HCl → ZnCl2 + H2

- The reaction involves the reaction between zinc (Zn) and hydrochloric acid (HCl).
- Zinc (Zn) displaces hydrogen (H) from hydrochloric acid (HCl), forming zinc chloride (ZnCl2) and hydrogen gas (H2).
- The hydrogen gas is evolved as a product of the reaction.
- Thus, this reaction is an example of a displacement reaction because zinc (Zn) displaces hydrogen (H) from hydrochloric acid (HCl) to form zinc chloride (ZnCl2) and hydrogen gas (H2).

Therefore, the correct answer is option 'A' - Displacement reaction.

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