Home › NEET UG › Chemistry › Chemical Bonding and Molecular Structure › A hydrogen bond is formed when an H atom is cova…
A hydrogen bond is formed when an H atom is covalently bonded to:
AOnly metals
BOnly carbon
CA highly electronegative atom — F, O or N
DAny non-metal
Answer & Solution
Correct answer: C. A highly electronegative atom — F, O or N
H-bonding requires H to be attached to a *highly electronegative, small* atom — **F, O or N**. The polarised H δ⁺ then attracts the lone pair of another electronegative atom.
Related questions
Among the following, the molecule with a zero dipole moment despite polar bonds is:In a coordinate (dative) bond, the shared pair of electrons:The shape of SF₆ is:Which of the following diatomic species is paramagnetic in its ground state?Among N₂, O₂, F₂ and Ne₂, the molecule with the highest bond order is:Bond order in molecular orbital theory is defined as:A hydrogen bond is best described as the attraction between H attached to a highly electroThe maximum number of bonds an oxygen atom can normally form is: