ABC26OR0041 · General Organic Chemistry
Subject: Organic Chemistry · Chapter: General Organic Chemistry · Topic: Acidity Basicity · Exam: CSIR-NET JUNE 2015 · Marks: 2 · Difficulty: Hard
The correct order of pKa values for the compounds X, Y and Z is 
(X) (Y) (Z)
(X) (Y) (Z)(a)X $>$ Y $>$ Z
(b)$\mathrm{Y}>\mathrm{Z}>\mathrm{X}$
(c)Z $>$ X $>$ Y
(d)Y $>$ X $>$ Z
Answer
Answer (as printed): C
Explanation
Higher the acidity lower the pKa value. In Z, due to annelation effect, proton is less acidic and hence higher pKa.