Maleic and Fumaric acid, both have chemical C4H4O4. The structure of these acids is shown below. What type of isomers are these?
Correct answer: A. Cis-trans isomers
- A. Cis-trans isomers
- B. Structural isomers
- C. Metamers
- D. Position Isomers
Explanation
Maleic acid and fumaric acid are cis-trans (geometrical) isomers.They have the same molecular formula (C4H4O4) but differ in the arrangement of -COOH groups aroundthe C=C bond: cis in maleic acid, trans in fumaric acid.
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About Carboxylic Acids
Carboxylic acids are named and studied through the combined effects of the carbonyl and hydroxyl groups, their preparation, acidity and hydrogen bonding. Reactions include neutralisation, esterification, reduction and conversion into acid chlorides, anhydrides, esters and amides, with emphasis on how these derivatives interconvert.
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