NEET Solved Paper 2018 Question 20

Question: Which of the following is correct with respect to - I effect of the substituents? (R = alkyl) [NEET - 2018]

Options:

A) $ \text{-N}{H_2}\text{-OR-F} $

B) $ \text{-N}{R_2}\text{-OR-F} $

C) $ \text{-N}{H_2}\text{-OR-F} $

D) $ \text{-N}{R_2}\text{-OR-F} $

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Answer:

Correct Answer: C

Solution:

I effect increases on increasing electronegativity of atom.

So, correct order of -I effect is $ \text{–N}{H_2}\text{–OR–F} $ .

Most appropriate Sol. is option [c],

However option [b] may also be correct Sol.