Advertisements
Advertisements
प्रश्न
Discuss the shape of the following molecules using the VSEPR model:
BeCl2, BCl3, SiCl4, AsF5, H2S, PH3
Advertisements
उत्तर
BeCl2:
The central atom has no lone pair and there are two bond pairs. i.e., BeCl2 is of the type AB2. Hence, it has a linear shape.
BCl3:
The central atom has no lone pair and there are three bond pairs. Hence, it is of the type AB3. Hence, it is trigonal planar.
SiCl4:
The central atom has no lone pair and there are four bond pairs. Hence, the shape of SiCl4 is tetrahedral being the AB4 type molecule.
AsF5:
The central atom has no lone pair and there are five bond pairs. Hence, AsF5 is of the type AB5. Therefore, the shape is trigonal bipyramidal.
H2S:
The central atom has one lone pair and there are two bond pairs. Hence, H2S is of the type AB2E. The shape is Bent.
PH3:
The central atom has one lone pair and there are three bond pairs. Hence, PH3 is of the AB3E type. Therefore, the shape is trigonal pyramidal.
संबंधित प्रश्न
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.
Identify the molecule with linear geometry?
Stable form of A may be represented by the formula:
Explain the non-linear shape of \[\ce{H2S}\] and non-planar shape of \[\ce{PCl3}\] using valence shell electron pair repulsion theory.
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)?
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:
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.
Identify the geometry of TeF4 molecule from the following.
Match List-I with List-II:
| List-I (Compound) |
List-II (Shape/Geometry) |
| A. NH3 | I. Trigonal pyramidal |
| B. BrF5 | II. Square planar |
| C. XeF4 | III. Octahedral |
| D. SF6 | IV. Square pyramidal |
Choose the correct answer from the options given below:
