Answer
See explanation
Work Step by Step
a) root name is 'meth' i.e. the compound has 1 carbon in straight chain and ending name is 'anal' i.e. -CHO group is present. Draw -CHO group which already has one 'C' in it. The remaining valency of C is filled with H.
b) 'hept' means 7 C in straight chain and 'anone' means -CO- group is present and it is present at C4 position (4-heptanone). Remaining valency of C atoms is filled with H.
c) 'but' means 4 C in straight chain and 'anal' means -CHO group present at C1 position. 3-chloro means one Cl group is present at C3 position. Remaining valency of C atoms is filled with H.
d) 'hex' means 6 C in straight chain and 'anone' means -CO- group present. 2-hexanone means that the CO group is present at C2 position and 5,5-dimethyl means two methyl groups are present at C5 position. Remaining valency of C atoms is filled with H.
