1.

The order of decreasing ease of abstraction of hydrogen atoms in the following molecule is

Answer»

`H_(a) gt H_(b) gt H_(c)`
`H_(a) gt H_(c) gt H_(b)`
`H_(b) gt H_(a) gt H_(c)`
`H_(c) gt H_(b) gt H_(a) `

Solution :A more stable PRODUCT formation will give EASY abstraction.

`2^(@)` free radical but not resonance STABILIZED.
Thus, STABILITY order of free radicals : `(I) gt (II) gt (III) `
`therefore` Abstraction order will be : `H_(a) gt H_(c) gt H_(b)`


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