1.

Name of HOOCCH2-C-CH2COOH

Answer» pentane dioic acid .... bcz 2 COOH groups
If an unbranched chain is directly linked to more than two carboxy groups, these carboxy groups are named from the parent hydride by substitutive use of a suffix. ‘carboxylic acid’This is such a case hence the parent chain is propane:Propane-1,2,3-tricarboxylic acid


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