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Question

Which one of the following orders is correct regarding the $$-I$$ effect of the substituents?


A
NR2<OR>F
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B
NR2>OR>F
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C
NR2<OR<F
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D
NR2>OR<F
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Solution

The correct option is C $$-NR_{2}<-OR<-F$$
Alkyl is an electron releasing group has $$+I$$ inductive effect. $$-F$$ has $$-I$$ inductive effect. Oxygen is more electronegative than nitrogen. Therefore the order of $$-I$$ effect is $$-NR_2<-OR< -F$$ 

Chemistry

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