In: Chemistry
how do you determine the number of hydrogen atoms bonded to each carbon in a line-angle formula?
Since carbon atom has a covaleny of 4, we need to fill 4 bonds to a carbon atom. Hence
In line angle formulae, if single bond is present on both sides, then 2 H - atoms need to be attached to the carbon to complete a covalency of 4.
If there is a double bond on one side and a single bond on the other side, then 1 H - atoms need to be attached to the carbon to complete a covalency of 4.
If there is a triple bond on one side and a single bond on the other side, then no H - atoms need to be attached to the carbon since it has already completed a covalency of 4.
If there is double bond on both sides, then no H - atoms need to be attached to the carbon since it has already completed a covalency of 4.
In case of terminal carbin, if it ends with single line(bond), then 3 H needs to be attached.
if it ends with double line(bond), then 2 H needs to be attached.
if it ends with triple line(bond), the 1 H needs to be attached.