Question

Action of dilute mineral acids on zinc can give – *

(a) H⁺

(b) H₂

(c) D₂

(d) H₂O

​

Answer 1

Answer:

option :- b

Explanation:

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Answer 2

Action of dilute mineral acids on zinc can give H2 (Option B)

Answer:

1. The correct choice of the asked question is Option (B) H2. When dilute mineral acid is reacted with zinc, Dihydrogen (H2) is formed.

2. Dilute HCl is a diluted mineral acid. When Zinc is reacted with dilute hydrochloric acid, the products that are formed are hydrogen gas (H2) and zinc chloride (ZnCl).

3. The reaction that occurs here is a single displacement reaction wherein hydrogen from HCl is displaced by Zinc to form hydrogen gas and zinc chloride as products of this reaction.

4. This reaction is exothermic which means that a large quantity of heat is generated or released in this reaction. The reaction is given below:

Zn (s) + 2HCl (aq) ---> ZnCl2 (s) + H2 (g)

5. Clearly, from the above reaction we can understand that when Zinc is reacted with dilute mineral acid like HCl (aq), then Dihydrogen gas is formed.

6. Formula of Dihydrogen gas is H2. Dihydrogen gas is a molecule which is formed by 2 hydrogens combined by only a single bond.

7. Therefore, action of dilute mineral acids on Zinc can give H2 as product.

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