Q6 / 54 · JEE Advanced 2017 (Paper 2) · Chemistry

What is the order of basicity among the following compounds?
Figure

  • A
    II>I>IV>III
  • B
    IV>II>III>I
  • C
    I>IV>III>II
  • Correct answer
    D
    IV>I>II>III

Solution

Basic strength ∝ stability of conjugated acid.

∝+M/+H/+I

Figure

Conjugated acid is stabilized by two equivalent Resonating Structure

Figure

Figure

Figure

Conjugated acid is stabilized by 3 equivalent R.S.

Hence, the correct answer is option: 'D'.

Relevant Questions