The maximum number of carbon atoms arranged linearly in the molecule, CH3-C≡ C-CH=CH2 is

Question

The maximum number of carbon atoms arranged linearly in the molecule, CH3-C≡ C-CH=CH2 is (A) 5 (B) 4 (C) 2 (D) 3

Tardigrade Admin · Accepted Answer

The way in which the molecule is represented in question isn't how the actual shape is. The actual shape of the molecule is given below.

Solution

A compound is said to be linear when all bond angles between Carbon atoms is 180^o. The actual shape of the molecule is draw above. We can clearly see that the 4th Carbon from left has sp² hybridization and hence will have a bond angle of 120^o. Thus, the 5th Carbon is not linear with 4th carbon. Hence, only 4 Carbons are arranged linearly.

Q. The maximum number of carbon atoms arranged linearly in the molecule, CH3​−C≡C−CH=CH2​ is

5

4

2

3

Q. The maximum number of carbon atoms arranged linearly in the molecule, $C H_{3} - C \equiv C - C H = C H_{2}$ is