Distinguish between the Lewis structures of the following pairs of molecules:
$(i)$ $BCl_3$ and $BH_3$
$(ii)$ $BeCl_2$ and $BeH_2$
$(i)$ $BCl_3$ and $BH_3$
$(ii)$ $BeCl_2$ and $BeH_2$
(N/A) In $BCl_3$,the $B$ atom has an incomplete octet (sextet),while each $Cl$ atom has a complete octet.
In $BH_3$,the $B$ atom has an incomplete octet (sextet),and the $H$ atoms have a duplet configuration (not an octet).
In $BeCl_2$,the $Be$ atom has an incomplete octet (quartet),while each $Cl$ atom has a complete octet.
In $BeH_2$,the $Be$ atom has an incomplete octet (quartet),and the $H$ atoms have a duplet configuration.
Thus,in both pairs,the central atom ($B$ or $Be$) has an incomplete octet,but the terminal atoms differ in their valence shell completion ($Cl$ completes its octet,whereas $H$ completes its duplet).
In $BH_3$,the $B$ atom has an incomplete octet (sextet),and the $H$ atoms have a duplet configuration (not an octet).
In $BeCl_2$,the $Be$ atom has an incomplete octet (quartet),while each $Cl$ atom has a complete octet.
In $BeH_2$,the $Be$ atom has an incomplete octet (quartet),and the $H$ atoms have a duplet configuration.
Thus,in both pairs,the central atom ($B$ or $Be$) has an incomplete octet,but the terminal atoms differ in their valence shell completion ($Cl$ completes its octet,whereas $H$ completes its duplet).
Explore More
Similar Questions
Which statement is true about the most stable Lewis structure for $CS_2$?
Difficult
View SolutionExplain the formation of $H_{2}$ molecule on the basis of valence bond theory.
Medium
View Solution$CCl_4$ cannot give a precipitate with $AgNO_3$ due to:
Difficult
View SolutionIn a double bond connecting two atoms,there is a sharing of
Easy
View SolutionThe electronic configuration of three elements $A$,$B$ and $C$ are given below. Stable form of $C$ may be represented by the formula
$A : 1s^2, 2s^2, 2p^6$
$B : 1s^2, 2s^2, 2p^6, 3s^2, 3p^3$
$C : 1s^2, 2s^2, 2p^6, 3s^2, 3p^5$
$A : 1s^2, 2s^2, 2p^6$
$B : 1s^2, 2s^2, 2p^6, 3s^2, 3p^3$
$C : 1s^2, 2s^2, 2p^6, 3s^2, 3p^5$
Medium
View SolutionVedclass Products
For Students
Vedclass Test Series
Mock tests in real JEE/NEET style with performance analysis. 5-day free trial.
Start Free TrialFor Teachers
Exam Paper Generator
Generate Set A/B/C/D exam papers from 7.5L+ questions in 2 minutes. 3 chapters free.
Try FreeFor Institutes
Online Exam Module
Live online exams with unlimited students, 360° analytics & white-label branding.
See Demo