Concept explainers
(a)
Interpretation:
The
Concept introduction:
VSEPR theory helps to draw the molecular shape as:
Total number of valence electron pairs | Number of bond pairs | Number of lone pairs | Geometry and shape |
2 | 2 | 0 | linear |
3 | 3 | 0 | Trigonal planar |
2 | 1 | bent | |
4 | 4 | 0 | Tetrahedral |
3 | 1 | Pyramidal | |
2 | 2 | Bent |
Shape of molecules gives the bond angle.
(a)
Answer to Problem 49A
The
Explanation of Solution
Lewis structure of
It shows, there are 2 bond pairs and 2 lone pairs around oxygen atom. Therefore, by VSEPR theory its shape is pyramidal and
(b)
Interpretation:
The
Concept introduction:
VSEPR theory helps to draw the molecular shape as:
Total number of valence electron pairs | Number of bond pairs | Number of lone pairs | Geometry and shape |
2 | 2 | 0 | linear |
3 | 3 | 0 | Trigonal planar |
2 | 1 | bent | |
4 | 4 | 0 | Tetrahedral |
3 | 1 | Pyramidal | |
2 | 2 | Bent |
Shape of molecules gives the bond angle.
(b)
Answer to Problem 49A
The
Explanation of Solution
Lewis structure of
It shows, there are 3 bond pairs and 1 lone-pair around nitrogen atom. Therefore, by VSEPR theory its shape is pyramidal and bond angle is
(c)
Interpretation:
The
Concept introduction:
VSEPR theory helps to draw the molecular shape as:
Total number of valence electron pairs | Number of bond pairs | Number of lone pairs | Geometry and shape |
2 | 2 | 0 | linear |
3 | 3 | 0 | Trigonal planar |
2 | 1 | bent | |
4 | 4 | 0 | Tetrahedral |
3 | 1 | Pyramidal | |
2 | 2 | Bent |
Shape of molecules gives the bond angle.
(c)
Answer to Problem 49A
The
Explanation of Solution
Lewis structure of
It shows, there are 4 bond pairs and no lone pairs around nitrogen atom. Therefore, by VSEPR theory its shape is tetrahedral and bond angle is normal tetrahedron angle.
(d)
Interpretation:
The
Concept introduction:
VSEPR theory helps to draw the molecular shape as:
Total number of valence electron pairs | Number of bond pairs | Number of lone pairs | Geometry and shape |
2 | 2 | 0 | linear |
3 | 3 | 0 | Trigonal planar |
2 | 1 | bent | |
4 | 4 | 0 | Tetrahedral |
3 | 1 | Pyramidal | |
2 | 2 | Bent |
Shape of molecules gives the bond angle.
(d)
Answer to Problem 49A
The
Explanation of Solution
Lewis structure of
It shows, there are 4 bond pairs and no lone pairs around carbon atom. Therefore, by VSEPR theory its shape is tetrahedral and bond angle is normal tetrahedron angle.
Chapter 12 Solutions
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