Which has the more + $I$ $I$ effect, - $O C H_{3}$ $OCH_3$ or - $C H_{3}$ $CH_3$ ?

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Which has the more + $I$ $I$ effect, - $O C H_{3}$ $OCH_3$ or - $C H_{3}$ $CH_3$ ?

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Answer 1 · 2017-12-14T15:25:59

$- C H_{3}$ $-CH_3$

Explanation:

The methyl ( $- C H_{3}$ $-CH_3$ ) group has the most I+ effect. Methyl groups are electron donating, and thus push electrons into the molecule.

The methoxy ( $- O C H_{3}$ $-OCH_3$ ) group has a I- effect. This is because oxygen has a high degree of electronegativity, and thus pulls electrons towards itself.

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Which has the more + $I$ $I$ effect, - $O C H_{3}$ $OCH_3$ or - $C H_{3}$ $CH_3$ ?

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Which has the more +II effect, -OCH3OCH_3 or - CH3CH_3?

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Which has the more + $I$ $I$ effect, - $O C H_{3}$ $OCH_3$ or - $C H_{3}$ $CH_3$ ?