Question

how many distinct terminal alkynes exist with a molecular formula C6H10?

Answer 1

Answer: 4 distinct terminal alkynes are present having a molecular formula $C_6H_{10}$

Explanation: Alkynes are the unsaturated hydrocarbons in which triple bond is present between 2 Carbon-atoms. They consists of $1-\sigma \text[ and }2-\pi$ bonds.

Terminal alkynes are the ones where triple bond is present between $C_1\text{ and }C_2$ atoms.

We are given a molecule having formula $C_6H_{10}$  in which 4 different terminal alkynes are possible. They are:

1. hex-1-yne
2. 4-methylpent-1-yne
3. 3-methylpent-1-yne
4. 3,3-methylbut-1-yne

The structures are shown in the image below.

Answer 2

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