GOC Chapterwise MCQsAssignment-3
15 GOC MCQ Questions are given on this page. These questions have been asked in previous year exams of CSIR NET, GATE, TIFR, BARC etc. Test your knowledge by trying these simple MCQs and match your answers with the answer key provided at the bottom of the page.Also note, you can attempt this assignment as a quiz where you can mark options, calculate your score and see which questions you attempted were correct and which were not. For doing so, go to Quiz link. To download the assignment in PDF format, click PDF.
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Quiz PDF
Q1. Arrange the following in the decreasing
order of basicity
a) A > C > B
b) B > C > A
c) B > A > C
d) A > B > C
Q2. Molecular orbital interaction involved in the
second step of the following reaction is
a) nN to σ*C-O
b) nN to σ*C-C
c) σN-H
to σ*C-O
d) σN-H to σ*C-C
Q3. Among the bromides I, II, III given below,
the loss of Br- will be most facile in
a) III>II>I
b) II>III>I
c) III>I>II
d) I>III>II
Q4. Rank the following molecules in order of
electrophilicity from (most to least electrophilic)
a) II>III>IV>I
b) I>IV>III>II
c) II>IV>III>I
d) I>III>IV>II
Q5. The product A and B will respectively be
Q6. Which of the following will be more reactive
towards electrophilic substitution?
a) B
b) A
c) Can't
be determined
d) Equally
reactive
Q7. The correct order of heat of hydrogenation
for the following olefins is
a) C>B>A>D
b) D>A>B>C
c) D>C>B>A
d) A>B>C>D
Q8. The correct order of reactivity of benzene
ring words the electrophile is
a) D>C>B>A
b) A>D>C>B
c) D>A>C>B
d) A>B>C>D
Q9. Match the following molecules with their
respective stretching frequencies
a) A-III,
B-I, C-II
b) A-I, B-II,
C-III
c) A-III,
B-II, C-I
d) A-II, B-I, C-III
Q10. The electron density in Î * orbital of C=O
will be higher in
a) B
b) A
c) Equal in
both
d) Can't
be determined
Q11. Arrange the following in decreasing order of
basicity
a) B>A>C>D
b) A>B>D>C
c) A>B>C>D
d) B>A>D>C
Q12. The hydride ion affinity would be least and
maximum respectively for
a) D, C
b) D, A
c) A, D
d) B, D
Q13. Which chlorine atom will ionize first?
a) 2
b) 3
c) 1
d) Can't say
Q14. Correct order of decarboxylation for A, B and
C should be
a) C>B>A
b) C>A>B
c) A>C>B
d) A>B>C
Q15. Decreasing order of stability of following
carbon ions is
a) I>II>III
b) III>II>I
c) III>I>II
d) I>III>II
Answer Key
Q1.c Q2.a Q3.c Q4.a Q5.a
Q6.b Q7.b Q8.d Q9.d Q10.a
Q11.c Q12.b Q13.c Q14.d Q15.b
Detailed Solution
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