JEE PYQ: General Organic Chemistry Question 47
Question 47 - 2019 (12 Jan Shift 2)
The correct order for acid strength of compounds $\text{CH}\equiv\text{CH}$, $\text{CH}_3-\text{C}\equiv\text{CH}$ and $\text{CH}_2=\text{CH}_2$ is as follows:
(1) $\text{CH}\equiv\text{CH} > \text{CH}_2=\text{CH}_2 > \text{CH}_3-\text{C}\equiv\text{CH}$
(2) $\text{CH}_3-\text{C}\equiv\text{CH} > \text{CH}\equiv\text{CH} > \text{CH}_2=\text{CH}_2$
(3) $\text{CH}_3-\text{C}\equiv\text{CH} > \text{CH}_2=\text{CH}_2 > \text{HC}\equiv\text{CH}$
(4) $\text{HC}\equiv\text{CH} > \text{CH}_3-\text{C}\equiv\text{CH} > \text{CH}_2=\text{CH}_2$
Show Answer
Answer: (4)
Solution
Order of acidic strength is $\text{CH}\equiv\text{CH} > \text{CH}_3-\text{C}\equiv\text{CH} > \text{CH}_2=\text{CH}_2$.
BETA
