Explain the non-linear shape of HX2S and non-planar shape of PClX3 using valence shell electron pair repulsion theory. - Chemistry

Advertisements
Advertisements
Short Note

Explain the non-linear shape of \[\ce{H2S}\] and non-planar shape of \[\ce{PCl3}\] using valence shell electron pair repulsion theory.

Advertisements

Solution

The Lewis structure of \[\ce{H2S}\] is:


S-tom is surrounded by four electron pairs (two bonded and two lone pairs). These four electron pairs adopt tetrahedral arrangement. The presence of two lone pairs brings distortion in the molecule on account of repulsion with bonded pairs of electrons. Thus, the shape of \[\ce{H2S}\] molecule is V-shaped and not linear.

The Lewis structure of \[\ce{PCl3}\] is:

\[\begin{array}{cc}
\ce{Cl - \overset{\bullet\bullet}{P} - Cl}\\
|\phantom{.}\\
\ce{Cl}\phantom{}
\end{array}\]

P-tom is surrounded by four electron pairs (3 bonded and one lone pair). These four pairs adopt a tetrahedral geometry. Due to the presence of lone pair, \[\ce{PCl3}\] has a distorted tetrahedral geometry. Thus, it is pyramidal in shape and not non-planar shape.

  Is there an error in this question or solution?
Chapter 4: Chemical Bonding and Molecular Structure - Multiple Choice Questions (Type - I) [Page 44]

APPEARS IN

NCERT Exemplar Chemistry Class 11
Chapter 4 Chemical Bonding and Molecular Structure
Multiple Choice Questions (Type - I) | Q 31 | Page 44

Video TutorialsVIEW ALL [1]

RELATED QUESTIONS

Discuss the shape of the following molecules using the VSEPR model:

BeCl2, BCl3, SiCl4, AsF5, H2S, PH3


Although geometries of NH3 and H2O molecules are distorted tetrahedral, bond angle in water is less than that of ammonia. Discuss.


Select and write the most appropriate alternatives from the given choices.

Valence Shell Electron Pair repulsion (VSEPR) theory is used to predict which of the following:


According to VSEPR theory, the repulsion between different parts of electrons obey the order.


Shape of ClF3 is ______.


Explain VSEPR theory. Applying this theory to predict the shapes of IF7 and SF6.


The H-N-H bond angle in NH3 molecule is ____________.


Select the INCORRECT match.


Identify the molecule with linear geometry?


Stable form of A may be represented by the formula:


Elements \[\ce{X, Y}\] and \[\ce{Z}\] have 4, 5 and 7 valence electrons respectively. Write the molecular formula of the compounds formed by these elements individually with hydrogen.


Elements \[\ce{X, Y}\] and \[\ce{Z}\] have 4, 5 and 7 valence electrons respectively. Which of these compounds will have the highest dipole moment?


Which of the possible molecule/species is having maximum values for dipole moment. (where "A" is the central atom)?


Consider the species CH4, `"NH"_4^+` and `"BH"_4^-`. Choose the correct option with respect to these species.


Number of lone pair(s) of electrons on central atom and the shape of BrF3 molecule respectively are ______.


The number of lone pairs of electrons on the central I atom in `"I"_3^-` is ______.


Given below are two statements: One is labelled as Assertion A and the other is labelled as Reason R:

Assertion A: The H-O-H bond angle in water molecule is 104.5°.

Reason R: The lone pair-lone pair repulsion of electrons is higher than the bond pair-bond pair repulsion.

In the light of the above statements, choose the correct answer from the options given below:


In the following structure, the percentage of the 's' character in the lone pair occupy by the oxygen atom is ______.

Given: Cos θ = −0.99


What is the geometry of a water molecule?


What is the number of lone pair of electrons in IF7?


Identify compound having square pyramidal-shape:from following.


Share
Notifications



      Forgot password?
Use app×