30.Which of the following is no a valid resonance contributor in the benzylic anion? E)All of these are valid resonance structures. Ans:E 31.Arrange the following structures according to deereasing acidity 31>2 C Page 20 Page 20 30. Which of the following is not a valid resonance contributor in the benzylic anion? A) CH2 B) C) D) CH2 E) All of these are valid resonance structures. Ans: E 31. Arrange the following structures according to decreasing acidity? A) 1 > 3 > 4 > 2 D) 3 > 2 > 1 > 4 B) 2 > 4 > 3 > 1 E) 4 > 1 > 3 > 2 C) 4 > 3 > 1 > 2 Ans: C