Which of the following is true for the compound $AB$,if it is formed by the transfer of an electron from $A$ to $B$?

Which of the following compounds has the least covalent character in its $P-H$ bond?

The lattice energies of $KF$,$KCl$,$KBr$ and $KI$ follow the order:

The correct solubility order is:

If the enthalpy of sublimation of $Li$ is $155 \ kJ \ mol^{-1}$, enthalpy of dissociation of $F_2$ is $150 \ kJ \ mol^{-1}$, ionization enthalpy of $Li$ is $520 \ kJ \ mol^{-1}$, electron gain enthalpy of $F$ is $-313 \ kJ \ mol^{-1}$, and standard enthalpy of formation of $LiF$ is $-594 \ kJ \ mol^{-1}$, then the magnitude of the lattice enthalpy of $LiF$ is . . . . . . $kJ \ mol^{-1}$ (nearest integer).

Which of the following statements is correct for $CsBr_3$?