Question

state the valency of each carbon atoms in: an alkane and alkyne

Answer 1

carbons valency in alkane is 4
and
carbons valency in alkyne is 2

Answer 2

Valency

Explanation:

• Valency of each carbon of alkane: Between the carbon atoms of alkane it has single bonds present.
• Lets take an example of the simplest alkane which have more than 1 carbon atom that is ethane C₂H₆.
• The carbons are bonded with single bond and each carbon is bonded with three hydrogens.
• Hence, one bond with carbon and three bonds with hydrogen and the total valency of each carbon in the alkane is 4.
• Valency of each carbon of alkyne: Alkyne have triple bonds between carbon atoms.
• Again lets have an example of the alkyne compound that have more than 1 carbon atom that is ethyne or acetylene C₂H₂. The carbons are bonded with triple bond and each carbon is bonded with one hydrogen.
• Hence, three bonds with carbon and one bond with hydrogen and the total valency of each carbon in the alkyne is 4.