Acidity & Basicity - GOC MCQ Questions for CSIR NET and GATE
Q1. The correct order of basicity for the following anions is
(a) II > III > I
(b) I > II > III
(c) I > I > III
(d) III > II > I
Q2. The pair of solvents in which PCl5 does not ionize is
(b) CH3CN, CCl4
(c) C6H6, CCl4
(d) CH3CN, C6H6
Q3. Arrange the following compounds in increasing order of their pka values
(a) II < III < IV < I
(b) II < IV < III < I
(c) III < II < IV < I
(d) II < I < III < IV
Q4. The decreasing order of basicity of the following compounds is
(a) I > II > III > IV
(b) IV > I > II > III
(c) III > II > I > IV
(d) IV > III > II > I
Q5. The correct order of basicity of the following compound is
(a) IV > III > II > I
(b) III > IV > I > II
(c) IV > III > I > II
(d) III > IV > I > II
Q6. Increasing order of basicity among the following is
(a) Y < X < Z
(b) Y < Z < X
(c) X < Z < Y
(d) X < Y < Z
Q7. Which of the following is the strongest base in water?
Q8. Among the following compounds, the most basic compound is
Q9. The correct orientation of dipoles in pyrrole and pyridine is:
Q10. The correct order of pka value for the conjugate acids of the following heterocyclic compounds given below is:
(a) II > III > I > IV
(b) IV > II > III > I
(c) III > II > IV > I
(d) III > IV > II > I