Hydrogen Bonding

For ${\mathrm{H}}_2{\mathrm{O}}_2,{\mathrm{H}}_2\mathrm{S},{\mathrm{H}}_2\mathrm{O} \mathrm{and} \mathrm{HF}$ the correct order of increasing extent of hydrogen bonding is:

Why does orthophosphoric acid exist as a syrupy liquid?

_____ hydrogen bonding is present in o-nitrophenol. (Intramolecular/Intermolecular)

Intramolecular hydrogen bonding is present in:

Which of the following is arranged in the increasing order of enthalpy of vaporisation?

Which one of the following molecules will form a linear polymeric structure due to hydrogen bonding?

Which of the following is arranged in the increasing order of enthalpy of vaporisation ?

Assertion. ${\mathrm{H}}_2\mathrm{O}$ is the only hydride of group-16 which is liquid at ordinary temperature.

Reason. In ice, each oxygen atom is surrounded by two covalent bonds and two hydrogen bonds.

Assertion. Both o-hydroxy benzaldehyde and p-hydroxy benzaldehyde have same molecular weight and show H-bonding.

Reason. Melting point of p-hydroxy benzaldehyde is more.

Assertion. The ${\mathrm{HF}}_2^{-}$ ion exists in the solid-state and also in the liquid state but not in an aqueous solution.

Reason. The magnitude of hydrogen bonds in between $\mathrm{HF}-\mathrm{HF}$  molecules are weaker than that in between $\mathrm{HF}$ and ${\mathrm{H}}_2\mathrm{O}$ molecules.

Which of the following factors is responsible for uniting two ice cubes when they are pressed over each other?

Amongst ${\mathrm{H}}_2\mathrm{O}, {\mathrm{H}}_2\mathrm{S}, {\mathrm{H}}_2\mathrm{Se} \mathrm{and} {\mathrm{H}}_2\mathrm{Te},$the one with the highest boiling point is:

The maximum possible number of hydrogen bonds which ${\mathrm{H}}_2\mathrm{O}$ molecule can form is:

Which of the following does not have any hydrogen bond?

Which initiative provides collateral-free credit to micro and small enterprises?

Which part of the Indian Constitution deals with the Panchayati Raj?

Which article of the Indian Constitution provides for the establishment of an Inter-State Council?

Which type of cooperative society provides loans to its members at reasonable interest rates?

Which document contains the terms and conditions of a partnership agreement?

The hydrogen bond between two atoms is formed due to