Name the compounds whose line formulae are given below:
(i) 3-Ethyl-4-methylheptan-5-en-2-one (because the longest chain of carbon atoms is selected in such a way that the functional group > C = O gets lowest possible locant number)
(ii) 3-Nitrocyclohex-1-ene. (Carbon atoms of the ring are numbered in such a way that double bonded carbon gets the lowest number followed by the nitro group –)