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Arrangement of ( CH ₃ )₃- C -, ( CH ₃ )₂- CH -, CH ₃- CH ₂ - when attached to benzyl or an unsaturated group in increasing order of inductive effect is

Options

  1. A( CH ₃ )₃- C - < ( CH ₃ )₂- CH - < CH ₃- CH ₂
  2. BCH ₃- CH ₂- < ( CH ₃ )₂- < CH - < ( CH ₃ )₃- C -
  3. C( CH ₃ )₂- CH - < ( CH ₃ )₃- C - < CH ₃,- CH ₂
  4. D( CH ₃ )₃- C - < CH ₃- CH ₂- ( CH ₃ )₂- CH -

Correct answer

B. CH ₃- CH ₂- < ( CH ₃ )₂- < CH - < ( CH ₃ )₃- C -

Step-by-step solution

CH ₃ group has + I effect, as number of - CH ₃ group increases, the inductive effect increases.

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