Consider the following statements for carbonyl compounds:
(i) They give nucleophilic addition reaction.
(ii) Aldehyde is more reactive than ketone for nucleophilic addition reaction.
(iii) hydrogen of carbonyl compound is more acidic than hydrogen.
(iv) They give addition reaction followed by elimination reaction with .
Of these statements:
(1) (i) and (ii) are correct
(2) (i), (ii) and (iv) are correct
(3) (i), (ii) and (iii) are correct
(4) (i), (ii), (iii) and (iv) are correct
Consider the following statements for a carbonyl compound:
(i) It gives addition reaction
(ii) It gives condensation reaction
(iii) It gives elimination reaction
(iv) It gives oxidation reaction
Of these statements:
(1) (i), (ii), (iii) and (iv) are correct
(2) (i) and (ii) are correct
(3) (i), (ii) and (iii) are correct
(4) (i), (ii) and (iv) are correct
Which compound will give E1cb reaction?
(1)
(2)
(3)
(4) All of these
Reaction intermediate of E1 reaction is:
(1) Carbocation
(2) carbanion
(3) Carbene
(4) free radical
Reaction intermediate of E1cb reaction is:
1. Carbocation
2. Carbanion
3. benzyne
4. free radical
In the given reaction:
[X] will be:
(1)
(2)
(3)
(4)
Which one of the following is correctly matched?
1. | E2 reaction | |
2. | E2 reaction | |
3. | CH3CH2CH2OH | E1 reaction |
4. | E1cb reaction |
Which one of the following pairs is correctly matched?
(1) E1cb reaction, Hofmann elimination
(2) Hofmann rule, most substituted alkene
(3) Saytzeff rule, least substituted alkene
(4) E1 reaction, Hofmann elimination
Arrange the reactivity of alcohols in decreasing order for E1 elimination reaction:
(i)
(ii)
(iii)
(iv)
Select the correct answer from the codes given below:
Codes:
1. (iii), (ii), (iv), (i)
2. (ii), (iii), (iv), (i)
3. (ii), (iii), (i), (iv)
4. (iii), (ii), (i), (iv)