Question

Explain the following reactions using the suitable examples: (3)

i) Electrolytic decomposition reaction

ii) Neutralization reaction

iii) Double displacement reaction​

Answer 1

Explanation:

1. Electrolytic decomposition reaction

Electrolytic decomposition results when an electric current is passed through the aqueous solution of a compound. When electrical energy from a battery is passed through water, the water dissociates into the diatomic molecules of hydrogen and oxygen.

2. Neutralization reaction

In chemistry, neutralization or neutralisation is a chemical reaction in which acid and a base react quantitatively with each other. In a reaction in water, neutralization results in there being no excess of hydrogen or hydroxide ions present in the solution.

3. Double displacement reaction

A salt metathesis reaction, sometimes called a double replacement reaction, double displacement reaction, is a chemical process involving the exchange of bonds between two reacting chemical species which results in the creation of products with similar or identical bonding affiliations

Answer 2

Answer:

(i) Electrolytic decomposition reaction:

• When electricity is passed through a molten compound which is ionic nature, then the ions of the compound separate into components decomposing the compound, is called electrolytic decomposition reaction.

Example: 2NaCl --------------» 2Na + Cl₂

⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀ (Electricity)

(ii) Neutralisation reaction:

• When an acid solution reacts with a base by exchanging their radicals, such that a salt and water are the only products, then the reaction is called neutralisation reaction.

Example: H₂SO₄ (Acid) + 2NaOH (Base) ➞ Na₂SO₄ (Salt) + 2H₂O (Water)

(iii) Double displacement reaction:

• A chemical reaction, in which two compounds in their aqueous solutions react by exchanging their radicals, is called double displacement reaction.

Example: NaCl + AgNO₃ ➞ AgCl + NaNO₃

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