In the case of alkali metals, the covalent character decreases in the order
(a) MCl > MI > MBr > MF
(b) MF > MCl > MBr > MI
(c)MF > MCl > MI > MBr
(d) MI > MBr > MCl > MF
Which of the following is correct order of dipole moment of the following ?
(1) I > II > III
(2) I = II = III
(3) III > II > I
(4) I > III > II
Dipole-induced dipole interactions are present in which of the following pairs?
(a) H2O and alcohol (b) Cl2 and CCl4
(c) HCl and He atoms (d) SiF4 and He atoms