List of top Chemistry Questions on Alkynes

The incorrect statement regarding ethyne is

The product of hydrolysis of propyne in the presence of 1% \( HgSO_4 \) and 40% \( H_2SO_4 \) is ___________.

General formula of alkynes

The structures of major products A , B and C in the following reaction are sequence

Compound ‘A’ undergoes following sequence of reactions to give compound ‘B’. The correct structure and chirality of compound ‘B’ is
[where Et is –C2H5]
sequence of reactions to give compound
The correct order of acidic nature of the following alkynes is:
I. \( \text{C}_2\text{H}_2 \)
II. \( (\text{CH}_3)_2\text{C}_2 \)
III. \( (\text{CH}_3)\text{C}_2\text{H} \)
If the reaction sequence given below is carried out with 15 moles of acetylene, the amount of the product D formed (in g) is _____.
Reaction

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

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

Reaction

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
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 -
The product formed in the reaction \(\text{C}_6\text{H}_5\text{-C}\equiv\text{C-CH}_3\frac{\text{HgSO}_4/\text{H}_2\text{SO}_4}{85^\circ\text{C}}\)
Isotopes of an element have the same :
General formula of an alkyne is :
Predict the correct intermediate and product in the following reaction.
Predict the correct intermediate and product in the following reaction
Which one is the correct order of acidity?
$CH _{3} C \equiv CCH _{3} \xrightarrow{H 2 / P t} A \xrightarrow{D_{2} / P t} B$ 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?