Which of the following reagents will be able to distinguish between 1-butyne and 2-butyne?
1. NaNH2
2. HCl
3. O2
4. Br2
Mark the compound that, when treated with NaNH₂, forms its sodium salt:
1. | C2H2 | 2. | C6H6 |
3. | C2H6 | 4. | C2H4 |
A compound that is formed on passing chlorine through propene at 400C is -
1. PVC
2. Allyl chloride
3. Nickel chloride
4. 1,2-Dichloro ethane
In the following reaction,
Product A is-
1.
2.
3.
4.
The compound formed when acetylene is passed through dilute sulphuric acid in the presence of mercury(II) sulphate is:
1. Ether
2. Ketone
3. Acetic acid
4. Acetaldehyde
Why are acetylenic hydrogens acidic?
1. | The sigma electron density of the C-H bond in acetylene is closer to carbon, which has 50% s-character. |
2. | Acetylene has only one hydrogen on each carbon. |
3. | Acetylene contains the least number of hydrogens among the possible hydrocarbons having two carbons. |
4. | Acetylene belongs to the class of alkynes with the molecular formula \(\mathrm{C}_{\mathrm{n}} \mathrm{H}_{2 \mathrm{n}-2}\) |
A compound is treated with to give sodium salt. Identify the compound.
1.
2.
3.
4.
Ethylene forms ethylene chlorohydrin by the action of:
1. dry chlorine gas
2. dry hydrogen chlorine gas
3. solution of chlorine gas in water
4. dilute hydrochloric acid
Which alkene on ozonolysis gives
\(CH_3CH_2CHO\) and \(CH_3CCH_3\\ ~~~~~~~~||\\ ~~~~~~~~O\)
1. | ![]() |
2. | \(\mathrm {CH_3CH_2CH=CHCH_2CH_3}\) |
3. | \(\mathrm {CH_3CH_2CH=CHCH_3}\) |
4. | ![]() |
1.
2.
3.
4.