Question

Majority of the reactions of alkynes are the examples of _____. a. Addition reaction b. Redox Reaction c. Single Replacement Reaction d. Double Replacement Reaction

• A. Addition reaction
• B. Redox Reaction
• C. Single Replacement Reaction
• D. Double Replacement Reaction

Answer 1

The correct option is A

Addition reaction

Explanation for correct answer

option (A) Addition reaction

1. Alkynes undergo addition reaction due to presence of loosely held pi-electrons.
2. Due to presence of triple bond in alkynes, water, halogens it can be added by the method of addition reaction.
3. Hence, option (A) is correct.

Explanation for incorrect answer

(B) Redox Reaction

1. Alkynes may undergo redox reactions But generally it is very explosive when the reaction runs because of hydrogen gas which is very inflammable.
2. Hence, alkynes readily not undergo redox reactions option (B) is incorrect.

(C) Single Replacement Reaction

1. Alkynes due to presence of triple bonds generally preferred to become saturated or single bond compound.
2. So, they generally not prefer to undergo single replacement reaction. Hence, option (C) is incorrect.

(D) Double Replacement Reaction

1. Alkynes are unsaturated Hydrocarbons, and want to break the carbon-carbon bond and share these electrons to form a single bond.
2. So, they do not undergo Double replacement reaction. Hence option (D) is incorrect.

Therefore, due to presence of triple bonds alkynes undergo Addition reaction option (A) is correct.