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Functional group transformation
Organic chemistry
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DAILY CSIR PYQ FIVE

August 13, 2020August 15, 2020chemqueen

DAILY CSIR PYQ FIVE includes solving ORGANIC previous year questions. This helps the student to identify important areas from where questions appear in the exam.

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1. The intermediate A and the major product B in the following conversion are

a)
b)
c)
d)

2. The major product formed in the following reaction is:

a)
b)
c)
d)

3. The major product formed in the following reaction is:

a)
b)
c)
d)

4. The major product formed in the reaction of glucose with benzaldehyde and p-TSA is:

a)
b)
c)
d)

5. Papaverine on oxidation with potassium permanganate gives a ketone, which on fusion with potassium hydroxide gives

a)
b)
c)
d)

6. The major product formed on nitration (HNO3/H2SO4) of uridine followed by reduction with tin and HCl is

a)
b)
c)
d)

7. In the following reaction sequence, the correct structures for the major products X and Y are

a)
b)
c)
d)

8. The major product formed in the following reaction is:

a)
b)
c)
d)

9. Match the following:

a) (A)-iii (B)-ii (C)-iv
b) (A)-iv (B)-iii (C)-ii
c) (A)-ii (B)-iv (C)-iii
d) (A)-ii (B)-iii (C)-iv

10. The gauche interaction values for Me/Me, Me/Br and Br/Br are 3.3, 0.8 and 3.0 kJ/mol, respectively. Among the following, the most stable conformation of 2, 3-dibromobutane is:

a)
b)
c)
d)

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