Explain why the dipole moment of chlorobenzene is lower than that of cyclohexyl chloride?

Explain why alkyl halides, though polar, are immiscible with water.

Explain why Grignard reagents should be prepared under anhydrous conditions?

Give the uses of Freon 12, DDT, carbon tetrachloride and iodoform.

306. How the following conversions can be carried out?
Ethanol to But-1-yne.