Browse Questions

# Which one of the following is not correct?

(1) The "bond order" of $H_2, N_2\: and \: O_2$ follows the order $N_2 > H_2 > O_2$

(2) In $CsCl$ lattice, each Cs is surronded by 8 $Ci^-$ ions.

(3) The ionic nature of $KCI, MgCL_2\: and \: AICI_3$ follows the order $KCI > MgCI > AICI_3$

(4) The central atoms in $PF_3 , CIF_3\: and \: XeF_2$ have $sp^3d$ hybridisation.

$\begin {array} {1 1} (1)\;(I) \: and \: (IV) & \quad (2)\;(II) \: and \: (III) \\ (3)\;(I) \: and \: (II) & \quad (4)\;(II) \: and \: (III) \end {array}$

(1) (I) and (IV)