Equilibrium Ques 49
49. Which one of the following orders of acid strength is correct?
[2003]
(a) $RCOOH>HC \equiv CH>HOH>ROH$
(b) $RCOOH>ROH>HOH>HC \equiv CH$
(c) $RCOOH>HOH>ROH>HC \equiv CH$
(d) $RCOOH>HOH>HC \equiv CH>ROH$
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Answer:
Correct Answer: 49.(c)
Solution:
- (c) The higher is the tendency to donate proton, stronger is the acid. Thus, the correct order is $R-COOH>HOH>R-OH>CH \equiv CH$ depending upon the rate of donation of proton.
The stability order of conjugate base is $RCOO^{\Theta}>H-O^{\Theta}>R-O^{\Theta}>HC \equiv C^{\Theta}$
BETA
