1. Tardigrade
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  3. Chemistry
  4. The reactivity of the compounds (i) MeBr (ii) PhCH 2 Br (iii) MeCl (iv) p -MeOC 6 H 4 Br decreases as

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Q. The reactivity of the compounds (i) $MeBr$ (ii) $PhCH _{2} Br$ (iii) $MeCl$ (iv) $p -MeOC _{6} H _{4} Br$ decreases as

Haloalkanes and Haloarenes

Solution:

The order of reactivity follows the sequence :

benzyl halides $>$ alkyl halides $>$ aryl halides.

Out of chloride and bromides, bromides are more reactive. Therefore, the correct order of reactivity is

$PhCH _{2} Br ( ii )> MeBr ( i )> MeCl ( iii )>p- MeOC _{6} H _{4} Br ( iv )$