Question

what are Un-saturted Hydrocarbons?Describe the types of Un-Saturted Hydrocarbons.

Answer 1

Unsaturated hydrocarbons arehydrocarbons that have double or triplecovalent bonds between adjacentcarbon atoms. Those with at least one carbon-to-carbon double bond are called alkenes and those with at least one carbon-to-carbon triple bond are called alkynes. The position of the double or triple bond is shown by a number written either at the start of the name, or just before the -ene or -yne suffix (e.g. pent-2-ene and 2-butyne). The number represents the position of the first of the two carbons making the bond, in the longest carbon chain. Alkenes and alkynes with more than one double or triple bond respectively are named with a prefix preceding the -ene or -yne (e.g. 2,4-pentadiene).

Unsaturated hydrocarbons with both double and triple bonds have the suffix -enyne and are handled in a similar manner.

The physical properties of unsaturated hydrocarbons are very similar to those of the corresponding saturated compounds. They are typically only sparingly soluble in water.

Except for aromatic compounds, unsaturated hydrocarbons are reactive and undergo addition reactions to their multiple bonds. Typical reagents added are hydrogen halides, water, sulfuric acid, elemental halogens, and alcohols.

Answer 2

Unsaturated hydrocarbons are hydrocarbons that have double or triple covalent bonds between adjacent carbon atoms.
Types of Unsaturated Hydrocarbons

Alkenes are unsaturated hydrocarbons that have one or more carbon-carbon double bond, with a general structure of (R-C=C-R'), where R and R' are hydrocarbon groups attached to either side of the carbon atoms. The convention for naming alkenes includes the suffix 'ene' in its name, which notifies us that a double bond is present.

Alkynes are unsaturated hydrocarbons that have one or more carbon-carbon triple bonds. When naming alkynes, the suffix 'yne' is used, which notifies us that there is a triple bond present in the compound.