List of top Chemistry Questions on Alkynes

General formula of alkynes

Given below are two statements:
Statement-I : In Hofmann degradation reaction, the migration of only an alkyl group takes place from carbonyl carbon of the amide to the nitrogen atom.
Statement-II : The group is migrated in Hofmann degradation reaction to electron deficient atom.
In the light of the above statements, choose the most appropriate answer from the options given below:

Which of the following compounds is not aromatic?

Compound ‘A’ undergoes following sequence of reactions to give compound ‘B’. The correct structure and chirality of compound ‘B’ is
[where Et is –C₂H₅]

If the reaction sequence given below is carried out with 15 moles of acetylene, the amount of the product D formed (in g) is _____.

The yields of A, B, C and D are given in parentheses.
[Given: Atomic mass of H = 1, C = 12, O = 16, Cl = 35]

Write down the structure of picric acid

The reagent that is used to convert but-2-yne to trans-but-2-ene is

The product formed in the reaction \(\text{C}_6\text{H}_5\text{-C}\equiv\text{C-CH}_3\frac{\text{HgSO}_4/\text{H}_2\text{SO}_4}{85^\circ\text{C}}\)

When acetylene is passed into methanol at $160- 200�C$ in the presence of a small amount of potassium methoxide under pressure, the following is formed -

Which one is the correct order of acidity?

Predict the correct intermediate and product in the following reaction.

$CH _{3} C \equiv CCH _{3} \xrightarrow{H 2 / P t} A \xrightarrow{D_{2} / P t} B$ The compounds $A$ and $B$, respectively are

Number of possible alkynes with formula $C_5H_8$ is

Which of the following organic compounds has same hybridization as its combustion product CO2 ?

Identify \(Z\) in the sequence of reactions:
\(CH_3CH_2CH=CH_2  \xrightarrow{HBr/H_2O_2}Y \xrightarrow{C_2H_5ONa}Z\)

What would be the expected product of the reaction of propyne with$ Br_{2}/H_{2}O$ if the mechanism of this reaction is analogous to that of propene?

In the below reaction $x$ is.

What will be obtained when acetylene is treated with arsenic chloride?

The ionic carbide is:

Butyne-1 and butyne-2 can be distinguished by:

When ethyne is passed through dilute $ {{H}_{2}}S{{O}_{4}} $ containing $ {{H}_{g}}S{{O}_{4}}, $ it forms:

The cylindrical shape of an alkyne is due to

Reduction of 2-butyne with sodium in liquid ammonia gives predominantly