Question

Anisole to Phenol. Write two uses of neon.

Hint:

• Anisole undergoes cleavage in the presence of (HBr), forming phenol and methyl bromide.
• Neon is chemically inert and primarily used in lighting and cooling applications.

Answer 1

Anisole \( (C_6H_5OCH_3) \) can be converted to phenol \( (C_6H_5OH) \) via hydrolysis using hydrobromic acid: \[ C_6H_5OCH_3 + HBr \xrightarrow{\text{Heat}} C_6H_5OH + CH_3Br \]
Neon (Ne) is a noble gas with various applications. Two important uses include:
1. Illumination: Used in neon lights and advertising signs.
2. Cryogenics: Used in high-performance cooling systems, especially in refrigeration.