CSIR UGC JRF NET Chemistry Question Paper

CSIR UGC JRF NET Chemistry Question Paper
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Chemistry Objective question answer - Aldehydes and Ketones

 

Find the correct answer by clicking on the choice given.

1. Which of the following reaction sequences would be the best synthesis of 2-pentanone.




2. Which of the functional groups on the following molecule are susceptible to nucleophilic attack?


(a) "a" and "b"

(b) "a" and "c"

(c) "b" and "c"

(d) "a", "b" and "c"

3. Which of the following reaction sequences would be the best synthesis of t-butyl alcohol?




4. Which of these reagents could accomplish the following reduction?


(a) NaBH4

(b) LiAlH4

(c) 1 mole H2, poisoned catalyst, low pressure

(d) H3O+



5. What is the major product of the following reaction?

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