Which of the following hydrogen bond is strongest in vapour phase?

Question

Which of the following hydrogen bond is strongest in vapour phase? (A) HF.........HF (B) HF...........HCl (C) HCl...........HCl (D) HI..........HF

Tardigrade Admin · Accepted Answer

<img class="img-fluid question-image" alt="Solution" src="https://cdn.tardigrade.in/q/nta/c-zceqzkeer7ep.png" /> atom which is associated with H should be more electronegative so positive charge uparrow on H -atom atom which is lone pair donor should be less electronegative so, that it can donate lone pair

Q. Which of the following hydrogen bond is strongest in vapour phase?

HF.........HF

HF...........HCl

HCl...........HCl

HI..........HF

atom which is associated with $H$ should be more electronegative so positive charge $↑$ on $H$ -atom & atom which is lone pair donor should be less electronegative so, that it can donate lone pair

Q. Which of the following hydrogen bond is strongest in vapour phase?

HF.........HF

HF...........HCl

HCl...........HCl

HI..........HF

atom which is associated with H should be more electronegative so positive charge ↑ on H -atom & atom which is lone pair donor should be less electronegative so, that it can donate lone pair

atom which is associated with $H$ should be more electronegative so positive charge $↑$ on $H$ -atom & atom which is lone pair donor should be less electronegative so, that it can donate lone pair