1,2-dibromopropane on treatment with X moles of followed by treatment with ethyl bromine gave a pent-2-yne. The value of X is -
1. 1
2. 2
3. 3
4. 4
The product X in the above-mentioned reaction is:
1. | 2. | ||
3. | 4. |
3-Phenylpropene on reaction with HBr gives (as a major product)-
1.
2.
3.
4.
In the following reaction,
\(\mathrm{ CH_{3}C\equiv CH\xrightarrow[Red \ hot \ iron \ tube]{873 K} \ A}\)
The number of () bonds present in the product (A) is:
1. 21
2. 9
3. 24
4. 18
The increasing order of the reactivity of the following compounds towards electrophilic aromatic substitution reaction is:
1. | III < I < II | 2. | III < II < I |
3. | II < I < III | 4. | II < III < I |
The major product in the above-mentioned reaction is:
1. | |
2. | |
3. | |
4. |
Compound A is:
1. | 2. | ||
3. | 4. |
Compound A () is treated with H2O/H2SO4 gives , an optically inactive compound. The structure of A is-
1. | CH3CH2CH=CH2 | 2. | CH3CH=CHCH3 |
3. | (CH3)2C=CH2 | 4. |
The main product A and B in the above mentioned reaction are respectively-
1.
2.
3.
4.
An alkene that gives a mixture of ketones only on ozonolysis, from the following, is :
1. | 2. | ||
3. | 4. |