Explain the following with suitable examples:
(i) Word root   (ii) Prefix        (iii) Suffix

(i) Word root:The word root represents the number of the carbon atoms present in the chain. Depending upon the number of carbons in the longest chain, the compound is assigned a word root as:

Chain length	Word root	Chain length	Word root
C1	Meth	C6	Hex
C2	Eth	C7	Hept
C3	Prop	C8	Oct
C4	But	C9	Non
C5	Pent	C10	Dec

(ii) Prefix. There are many groups (called substituents) which are not regarded as functional groups in the IUPAC names of a compound. These are called prefixes. These are put before the word root. Some of the prefixes are given below:

(iii) Suffix: The word root is linked to suffix which may be primary followed by secondary.
(a) Primary suffix: A primary suffix is added after the word root to indicate the nature of carhon-carhon bonds. These are piven below:

Nature of bond	Primary suffix	General name
C–C single bond	–ane	Alkane
C = C double bond	–ene	Alkene
C≡ C triple bond	–yne	Alkyne

(b) Secondary suffix: A secondary suffix is added after the primary suffix to indicate the nature of the functional group. These are given below: