Question

Which of the following product will be obtained when neopentyl alcohol is treated with conc. HCI in presence of ZnCl, (1) t-butyl chloride (2) isobutylene (3) t-pentyl chloride (4) Neo pentyl chloride ​

Answer 1

Answer:

Explanation:

When neopentyl alcohol is treated with conc. HCl in presence of ZnCl  

2

​

, t-pentyl chloride will be final product.

In this reaction, less stable primary carbocation rearranges to more stable tert carbocation through methyl shift. This gives rearranged product.

The overall reaction is the replacement of −OH group with chloride.

t-Pentyl chloride