Chemical Properties of Alkynes

When propyne is treated with aqueous ${\text{H}}_2\text{S}{\text{O}}_4$ in presence of $\text{H}\text{g}\text{S}{\text{O}}_4$, the major product is:

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 polymerization of acetylene with Ziegler–Natta catalysts produces polyacetylene films.

When acetylene, an alkyne passed through red-hot iron tube gives

Write the uses of alkyne?

Propyne on reaction with tollens reagent produces a white precipitate.

Write the chemical equation for the reaction of propyne with tollens reagent.

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.

The alkyne used in the preparation of chloroprene is _____.

The catalyst used in the polymerization of Alkynes is _____.

Write a note on linear polymerization of alkyne.

What would be the expected product of the reaction of propyne with ${\mathrm{Br}}_2/{\mathrm{H}}_2\mathrm{O}$ if the mechanism of this reaction is analogous to that of propene?(Bromoacetone/Bromopropanol)

A hydrocarbon $\mathrm{X}$ with molecular formula ${\mathrm{C}}_4{\mathrm{H}}_6$ decolorizes bromine water and forms a white  precipitate in ethanolic ${\mathrm{AgNO}}_3$ solution Treatment of $\mathrm{X}$ with ${\mathrm{HgCl}}_2$ in aqueous ${\mathrm{H}}_2{\mathrm{SO}}_4$ produces a compound, which gives a yellow precipitate when treated with ${\mathrm{I}}_2$ and $\mathrm{NaOH}$. The structure of $\mathrm{X}$ is :

The following conversion can be carried out by

 

An organic compound X with molecular formula ${\mathrm{C}}_6{\mathrm{H}}_{10},$ when treated with $\mathrm{HBr},$  forms a gem dibromide. The compound X upon warming with ${\mathrm{HgSO}}_4$ and dil. ${\mathrm{H}}_2{\mathrm{SO}}_4,$  produces a ketone, which gives a positive iodoform test. The compound X is

An alkyne $\mathrm{X}\left({\mathrm{C}}_4{\mathrm{H}}_6\right)$ forms sodium alkynide and when reacted with two molecules of $\mathrm{HBr}$, it gave $\mathrm{Y}.$ What are $\mathrm{X}$ and $\mathrm{Y}?$

Select reaction(s) which will favour in the forward direction: