Here the longest C-chain containing functional groups has got #6# C-atom.So stemname is hex.
The compound contains both #C=C# and #CequivC# in its chain.So inorder of prference #C=C# is to be given lowest locant ( here-1) but the name should end with 'en' followed by 'yne' with respectve locant (1-en-5yne to be added as suffix).Hence the numbering is to start from right here.
The prefix name of #Cl,F and NO_2 # will be added with respective locants in alphabatical order before the stem name .
And the IUPAC name will be
#"4-chloro-3-fluoro-4-nitrohex-1-en-5-yne"#
