# NEET Chemistry The p-Block Elements (XII) Questions Solved

BOARD

(a) Using VSEPR theory predict the probable structures of the following :

(i) ${N}_{2}{O}_{3}$                                (ii) $Br{F}_{3}$

(b) Arrange the following groups of substances in the order of the property indicated against each group :

(i)  - increasing order of boiling points.

(ii) O, S, Se, Te - increasing order of electron gain enthalpy with negative sign.

(iii)  - increasing order of bond dissociation enthalpy.

(a) (i) ${N}_{2}{O}_{3}$

(b) $Br{F}_{3}$

(b) (i) $P{H}_{3}

(ii) $O

(iii) The increasing order of bond dissociation enthalpy is :

$C{l}_{2}>B{r}_{2}>{F}_{2}>{I}_{2}$

Difficulty Level:

• 75%
• 17%