confusion for the use of phenyl and benzene when naming compounds Watch

debbie394
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i'm confused with when to use phenyl and benzene when naming organic compounds.
in my book it says that the benzene is a substituent and the prefix phenyl is used when then the alkyl chain or functional group has 7+ carbon atoms.

but when it comes to phenylethanoate. there are two carbons attached to the benzene so why does it use phenyl, but benzoic acid is used when one carbon atom is attached.

what about phenylethanone too?

this seems to contradict my book

what is the rule i should remember ( i understand there are some exceptions such as benzoic acid, phenyl amine and benzaldehyde).
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TSR Jessica
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Sorry you've not had any responses about this. Are you sure you've posted in the right place? Here's a link to our subject forum which should help get you more responses if you post there.
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