Alkynes

C₁ - C₂ bond is shortest in:

The product(s) obtained via hydration $({\mathrm{HgSO}}_4+{\mathrm{H}}_2{\mathrm{SO}}_4)$ of 1-butyne would be:

The number of possible structural and configurational isomers of a bromo compound, formed by the addition of 1 mole of HBr to 2-pentyne respectively, are –

The reagent(s) for the following conversion,

$\mathrm{Br}-{\mathrm{CH}}_2-{\mathrm{CH}}_2-\mathrm{Br} \stackrel{?}{\to } \mathrm{CH}\equiv \mathrm{CH}$

is/are

Explain the chain isomerism in the alkynes?

Discuss the chain isomerism in alkynes with an example.

Structural isomers which differ in a chain of carbon atoms are known as _____.

$$\begin{gathered} 1 2 3 4 5 \\ \mathrm{HC}\equiv \mathrm{C}-{\mathrm{CH}}_2-{\mathrm{CH}}_2-{\mathrm{CH}}_3 \\ 4 3 2 1 \\ {\mathrm{CH}}_3-\mathrm{CH}\left({\mathrm{CH}}_3 \right)-\mathrm{C}\equiv \mathrm{CH} \end{gathered}$$

Are these compounds are in chain isomerism.

Why do but-1-yne and but-2-yne exhibit position isomers.

Give the position isomers of pentyne.

There are two possible structures for butyne (positional isomers) — but-1-yne and but-2-yne.

Compare the solubility of alkynes with respect to that of alkanes and alkenes.

Alkynes are _____ in water.

All alkynes are colourless except _____.(acetylene/ethylene)

Physical properties of alkynes follow the same trend of alkenes and alkanes.

Which of the following alkyne has characteristic odour?

In presence of $\mathrm{CuCl}/{\mathrm{NH}}_4\mathrm{Cl}$, the ethyne is first converted into vinyl acetylene which is the starting material of neoprene.

Thin films of polyacetylene can be used as electrodes in batteries.

What is the uses of the linear polymer of alkyne?