GOC Acidity & Basicity MCQs for CSIR, NET GATE - ChemContent

Acidity & Basicity - GOC MCQ Questions for CSIR NET and GATE

QUIZ        PDF

Q1. The correct order of basicity for the following anions is

[NET June 2014]

(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

[NET June 2014] 

 (a) CH₃CN, CH₃NO₂
(b) CH₃CN, CCl₄
(c) C₆H₆, CCl₄
(d) CH₃CN, C₆H₆

Q3. Arrange the following compounds in increasing order of their pk_a 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

[NET Dec 2014]

(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

[GATE 2006]

(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

[GATE 2007]

(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

Answer Key

Q1.a Q2.c Q3.a Q4.c Q5.a Q6.a Q7.c Q8.d Q9.a Q10.c

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