1.

Carbon-halogen bond lenghts increases in the order

Answer»

`C-F LT C-CL lt C- BR lt C-I`
`C-I lt C-Br lt C- Cl lt C-F`
`C-I lt C-Br lt C-F lt C- Cl`
`C-I lt C-F lt C- Br lt C-Cl`

ANSWER :A


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