HOOC-CH2-CH-COOH

|

COOH

1,2,4-butane-trioic-acid

Dear Vaishal Shah,

Such a compound is not possible !

The valency of carbon atom is 4 .

But here one carbon atom had 5 bonds atteched to it which is not possible & the other carbon atom has just 3 carbon atoms attached to it .

It must be 1,2,2-ethane trioic acid

But you must put the -COOH which is under -CH₂ under -CH- 

Hope this helped you immensely...

All the Very Best & Good Luck to you ...

Regards,

AskIITians Expert,

Godfrey Classic Prince

IIT-Madras

Please approve my answer if you liked it by clicking on "Yes" given below....!!

ethane-1,1,2-tricarboxylicacid

it have two answers : 1) 2-carboxy-1,4-dioic acid

&

2) ethane-1,1,2-tri carboxylic acid