Maleic acid is stronger than fumaric acid because :
Correct answer: D. Maleic acid shows chelation or intramolecular H-bonding
- A. Fumaric acid shows intermolecular H-bonding
- B. Fumaric acid shows intramolecular H-bonding
- C. Maleic acid is dibasic acid
- D. Maleic acid shows chelation or intramolecular H-bonding
Explanation
Maleic acid shows intramolecular H-bonding (chelation) and thus-COOH is stabilized. Maleic acid, being a cis-isomer is capable of forming intra-hydrogen bond after losing H+ ion, making the conjugate base much stable than the trans form (fumaric acid) because both the oxygen atoms have strong interaction with the remaining H-atom.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
About Chemical Bonding
Chemical bonding explains molecular shape through VSEPR theory and distinguishes sigma bonds from pi bonds. Questions involve hybridization, bond angles, dipole moment and bond energy, including how electron-pair repulsion determines geometry and how bond polarity differs from the overall polarity of a molecule.
Practise Chemical Bonding
964 free Chemical Bonding MCQs from Chemistry, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Chemistry questions like this
Chemistry is on 14 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More Chemical Bonding questions
The bond angle and hybridization in ether (CH3OCH3) is:
Decreasing order of size of various hybrid orbitals is:
Phosphorous hydride's bond angle is closer to 90° while the bond angle of ammonium hydride is closer to 104.5°. Among the following, which one explains this structural feature correctly?
Dipole moment of the hydrides of group 15 elements decreases in the order :
The hybridization of the central metal ion and shape of Wilkinson's catalyst is:
The correct order of hybridization of the central atom in the following species NH3, [PtCl4]-2 , PCl5 and BCl3 is :