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:

Identify a reagent from the following list which can easily distinguish between 1-butyne and 2-butyne.

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 addition of $\mathrm{HOCl}$ to ethyne gives

Complete the following reaction:

$\mathrm{CH}\equiv \mathrm{CH}+2\mathrm{HOCl}\stackrel{ }{\underset{ -{\mathrm{H}}_2\mathrm{O} }{\to }}?$

Write the reaction of addition of $\mathrm{HOCl}$ to propyne.

Identify the catalyst used in the addition of $\mathrm{HCN}$ to ethyne.

The reactant $\mathrm{A}$ of the following reaction is

$\mathrm{A}+\mathrm{HCN}\stackrel{ \mathrm{Ba}{\left(\mathrm{CN}\right)}_2 }{\to }{\mathrm{CH}}_2=\mathrm{CHCN}$

Addition of $\mathrm{HCN}$ to ethyne gives the following product, which is used for the preparation of orlon.

Complete the below reaction:

$\mathrm{CH}\equiv \mathrm{CH}+\mathrm{HCN}\stackrel{ \mathrm{Ba}{\left(\mathrm{CN}\right)}_2 }{\to }?$

The reaction of _____ alkyne with $\mathrm{NaOCl}$ produces the corresponding monohaloderivative.

The name of the product of this reaction is

${\mathrm{CH}}_3\mathrm{C}\equiv \mathrm{CH}+\mathrm{NaOCl}\stackrel{ }{\to }{\mathrm{CH}}_3\mathrm{C}\equiv \mathrm{CCl}+\mathrm{NaOH}$

Identify the reagent used in the below reaction:

${\mathrm{CH}}_3\mathrm{C}\equiv \mathrm{CH}+?\stackrel{ }{\to }{\mathrm{CH}}_3\mathrm{C}\equiv \mathrm{CCl}+\mathrm{NaOH}$

Complete the below reaction:

${\mathrm{CH}}_3\mathrm{C}\equiv \mathrm{CH}+\mathrm{NaOCl}\stackrel{ }{\to }?+\mathrm{NaOH}$

Write the reaction of propyne with $\mathrm{NaOCl}$.

Write the reaction of addition of $\mathrm{HCN}$ to ethyne.

Write the reaction of addition of $\mathrm{HOCl}$ to ethyne.

What happens when ethyne reacts with sodium metal?