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Which is the correct order of increasing basicity?

Options

  1. ACH 3 CH 2 CH 3 < CH 3 CH 2 SH < CH 3 CH 2 OH < CH 3 CH 2 NH 2
  2. BCH 3 CH 2 CH 3 < CH 3 CH 2 OH < CH 3 CH 2 SH < CH 3 CH 2 NH 2
  3. CCH 3 CH 2 NH 2 < CH 3 CH 2 SH < CH 3 CH 2 OH < CH 3 CH 2 CH 3
  4. DCH 3 CH 2 CH 3 < CH 3 CH 2 OH < CH 3 CH 2 NH 2 < CH 3 CH 2 SH

Correct answer

A. CH 3 CH 2 CH 3 < CH 3 CH 2 SH < CH 3 CH 2 OH < CH 3 CH 2 NH 2

Step-by-step solution

CH 3 - CH 2 - CH 3 No lone pair, least basic CH 3 - CH 2 - OH CH 3 - CH 2 - NH 2 E.N. ↑ B.S. ↓ Size same CH 3 CH 2 SH size increases, basicity decreases

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