AP EAMCET · Chemistry · Hydrocarbons
Decreasing order of acidity of the following terminal acetylenes is
- A (i) \(>\) (iii) \(>\) (ii) \(>\) (iv)
- B (i) \(>\) (ii) \(>\) (iv) \(>\) (iii)
- C (i) \(>\) (iv) \(>\) (ii) \(>\) (iii)
- D (i) \(>\) (iii) \(>\) (iv) \(>\) (ii)
Answer & Solution
Correct Answer
(B) (i) \(>\) (ii) \(>\) (iv) \(>\) (iii)
Step-by-step Solution
Detailed explanation
Let us consider the structure of respective conjugate bases (carbonions), EWG \((-R)\) stabilise carbanions but EDG \((+R > +I)\) destabilise carbanions. [EWG : Electron withdrawing group EDG : Electron donating group] A stronger acid produces stable conjugate base. So, the…
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