Chemistry - CHEMICAL BONDING Question with Solution | TestHub
Consider the following statements :
(I) o-nitrophenol has lower boiling point than m-nitrophenol and p-nitrophenol
(II) CH bond length in is lesser than
(III) Dipole moment of is greater than
Select the correct set of codes using T for True and F for False statement in given sequence :
Options:
Answer:
Solution:
(I) o-nitrophenol forms intramolecular H-bonding, reducing intermolecular forces and thus lowering its boiling point compared to m- and p-nitrophenol which form intermolecular H-bonding. (TRUE)
(II) Fluorine is more electronegative than chlorine. In CHF₃, the C-H bond is shorter due to greater s-character in the C-H bond and stronger inductive effect from fluorine. (TRUE)
(III) CH₃Cl has a larger dipole moment than CH₃F. Although F is more electronegative, the C-Cl bond is longer, leading to a larger bond dipole moment that outweighs the higher electronegativity of F in CH₃F. (TRUE)
All statements are TRUE.
