Hydrocarbons : Alkynes

Give balanced chemical equations for the following conversions: (ii) Calcium carbide to ethyne

The IUPAC name of acetylene is:

Give a chemical test to distinguish between ethene gas and ethane gas.

From the following organic compounds given below, choose one compound in each case which relates to the description [i] to [iv]: 
[Ethyne, ethanol, acetic acid, ethene, methane]

(i) An unsaturated hydrocarbon used for welding purposes.

Give the structural formula for the following: (iii) Ethyne

Write balanced chemical equations for the following: (iv) Water is added to calcium carbide.

Write the equation for the reaction taking place between 1, 2-dibromoethane and alcoholic potassium hydroxide.

Draw the structural formula for But-2-yne.

An organic compound undergoes addition reactions and gives a red colour precipitate with ammoniacal cuprous chloride. Therefore, the organic compound could be: 

Give the chemical equation for the preparation of ethyne from 1, 2-dibromoethane. 

Write the name and formula of fourth member of the Alkyne.

How is ethyne prepared in the laboratory?

• Draw a diagram.
• Give an equation.
• How is pure dry gas collected?

Name: A triple bond hydrocarbon with two carbon atoms.

Give the trivial (common) name and the IUPAC name of ${\mathrm{C}}_2{\mathrm{H}}_2$.

Complete and balance the following equation. State the conditions wherever necessary.

$\mathrm{HC}\equiv \mathrm{CH}+{\mathrm{H}}_2\to \mathrm{\_\_\_\_\_\_}+{\mathrm{H}}_2\to \_\_\_\_\_$

Complete and balance the following equation. State the conditions wherever necessary.

${\mathrm{CaC}}_2+{\mathrm{H}}_2\mathrm{O}\to \_\_\_\_\_$

Complete and balance the following equation. State the conditions wherever necessary.

${\mathrm{C}}_2{\mathrm{H}}_2+{\mathrm{Br}}_2\to \_\_\_\_\_$

Write the equation for the following laboratory preparation: Ethyne from calcium carbide.

Name the compound prepared by the following reaction :

${\mathrm{CaC}}_2+2{\mathrm{H}}_2\mathrm{O}\to$

Write the equations for the following reaction : Calcium carbide and water.