The reaction intermediate involved in the addition of HBr to propene in the absence of peroxides is:
1. | H+ | 2. | Br− |
3. | H | 4. | Br |
Reductive ozonolysis of the alkene, CH3-CH=C=CH2 will give:
1. Only CO2
2. Only CH2O
3. Only CH3-CHO
4. Mixture of CH3CHO,HCHO
The main product A and B in the above mentioned reaction are respectively-
1.
2.
3.
4.
The structure of intermediate A in the following reaction is:
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2. | ![]() |
3. | ![]() |
4. | ![]() |
The reaction of C6H5CH =CHCH3 with HBr produces:
1. C_{6} H_{5} \underset{Br}{\underset{\left|\right.}{CH}} CH_{2} CH_{3}
2. C_{6} H_{5} CH_{2} \underset{Br}{\underset{\left|\right.}{CH}} CH_{3}
3. C_{6} H_{5} CH_{2} CH_{2} CH_{2} Br
4.
Sabatier Senderen’s reaction is an example of-
1. Non thermic reaction
2. Exothermic reaction
3. Endothermic reaction
4. None of the above
Reaction of alkene and peracid gives oxirane. This reaction is named as-
1. Peroxidation
2. Oxidation
3. epoxydation
4. None
The oxidation of benzene by V2O5 in the presence of air produces:
1. | Benzoic anhydride | 2. | Maleic anhydride |
3. | Benzoic acid | 4. | Benzaldehyde |
The product B in the above-mentioned reaction is:
1. | ![]() |
2. | ![]() |
3. | ![]() |
4. | ![]() |
Cyclopentadiene is much more acidic than cyclopentane, because:
1. | Cyclopentadiene has conjugated double bonds. |
2. | Cyclopentadiene has both sp2 and sp3 hybridized carbon atoms. |
3. | Cyclopentadiene is a strain-free cyclic system. |
4. | Cyclopentadienyl anion ion, the conjugate base of cyclopentadiene, is an aromatic species and hence has higher stability. |