PG TRB CHEMISTRY FREE ONLINE TEST

MARAN ACADEMY

PG TRB CHEMISTRY

  

 

1. conversion of allyl phenyl ether to allyl phenol is ____________rearrangement
   1.   Cope
   2.   Hofmann
   3.   Claisen
   4.   Benzidine
2. Identify the reagent for the conversion of acetamide to methylamine is
   1.   KOH
   2.   H2SO4
   3.   PCl5
   4.   Br2/KOH
3. Pick out the suitable for the rearrangement of pinacole to pinaclolne is __________.
   
   1.   H2SO4
   2.   NaOH
   3.   KOH/Br2
   4.   Pcl5
4. The conversion of benzophenone to benzanilide is _________rearrangement.
   
   1.   Lossen
   2.   Curtius
   3.   Beckmann
   4.   Hofmann
5. Rearrangements involing carbocations with a change in carbon skeleton is called
   1.   Wagner Meeruin Rearrangements
   2.   Pinacol – Pinacolone rearrangement
   3.   Beckmann rearrangement
   4.   Favorakii rearrangement
6. Aniline could be prepared from benzamide using
   1.   Hydrolysis
   2.   Hofmann rearrangement
   3.   Beckmann rearrangement
   4.   Benzidine rearrangement
7. .
   Lactone could be prepared using _____ rearrangement.
   
   1.   Pinacol – Pinacolone
   2.   cope
   3.   Baeyer – villeger
   4.   Favorskii
8. Quarternary ammomium salt is used in _____ rearrangement
   1.   Wolff
   2.   Stevens
   3.   Curtius
   4.   Sommelet Hauser
9. The reagent used in Hofmann rearrangement is
   1.   AlCl3
   2.   NaNH2
   3.   Br2/NaOH
   4.   H+
10. Conversion of an α – haloketone to an ester in presence of alkoxide ion is _________ rearrangement.
    
    1.   Wagner Meerwin
    2.   Pinacol – Pinacolone
    3.   Beckmann
    4.   Favorskii
11. Which of the following is not one of the twelve principles of green chemistry?
    1.   Using high temperatures to speed up reactions
    2.   Minimising toxic reagents used in a synthesis
    3.   Maximisation of atom economy
    4.   Minimising the use of solvents
12. The principles of green chemistry include the eliminating the ________ treatments
    1.   Costly
    2.   Harmful
    3.   Hard
    4.   Easy
13. One of the principles of green chemistry says that to produce _______ goods
    1.   Harmful
    2.   Commercial
    3.   Safer
    4.   Most used
14. .
    After the use of chemicals, we must ______ them properly.
    
    1.   Use
    2.   Dispose
    3.   Reuse
    4.   Store
15. .
    Green chemistry applies across the __________ of a chemical product like design, manufacture and use
    1.   Life cycle
    2.   Properties
    3.   Uses
    4.   Efficiency
16. Green chemistry improves __________ of chemical manufacturers
    1.   Competitiveness
    2.   Easiness of production
    3.   Services
    4.   Chemicals
17. .
    According to the green chemistry, the chemical involved in the production must be
    1.   Toxic
    2.   Non toxic
    3.   Highly toxic
    4.   Produces the toxic by products
18. .
    The green synthesis methods should have _________
    
    1.   Low efficiency
    2.   High harmful products
    3.   Low energy requirements
    4.   Low atom efficiency
19. The atom economy obtained for green synthesis is in the range of_________
    
    1.   62-70%
    2.   72-82%
    3.   40-50%
    4.   90-100%
20. In green synthetic methods, the high quality product with no ________ are produced
    1.   Good products
    2.   Catalyst
    3.   Reaction
    4.   Contamination