GOC Chapter MCQs for CSIR NET GATE (3) - ChemContent

Vijay Ishwar
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GOC Chapterwise MCQs
Assignment-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 Π* 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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