CH3-CC-HCH4 + (A)(B); (B) is -
1. H3C-CH2-CH2-COOH
2. CH3-CC-CH3
3. H3C-CC-COOH
4. H3C-CH=CH-COOH
3-Hexyne can be converted to trans-3-Hexene by the action of:
1. - Pd/
2. Li-Liq.
3. - Pt
4.
A compound having the shortest carbon-carbon bond length among the following is :
1. Benzene
2. Ethene
3. Ethyne
4. Ethane
Reaction of HBr with propene in the presence of peroxide gives
1. iso-propyl bromide
2. 3-bromo propane
3. allyl bromide
4. n-propyl bromide
In the reaction, A BC
the product C 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 |
A compound is treated with to give sodium salt. Identify the compound.
1.
2.
3.
4.
Which alkene on ozonolysis gives
\(CH_3CH_2CHO\) and \(CH_3CCH_3\\ ~~~~~~~~||\\ ~~~~~~~~O\)
1.
2.
3.
4.
Hydroxylation of propyne in the presence of is initiated by the attack of:
1. carbene
2. free radical
3. electrophile
4. nucleophile