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8953462
Shapes of Molecules
Description
AS level Chemistry Quiz on Shapes of Molecules, created by Luke Green on 16/05/2017.
No tags specified
ocr
chemistry
as level
h032
h432
2015
chemistry
as level
Quiz by
Luke Green
, updated more than 1 year ago
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Created by
Luke Green
over 7 years ago
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Resource summary
Question 1
Question
One molecule of Hydrogen Gas possesses which molecule shape?
Answer
Tetrahedral
Linear
Trigonal Planar
Question 2
Question
Predict the bond angle in a BF3 molecule.
Answer
120 degrees.
180 degrees.
109.5 degrees.
Question 3
Question
Which of these images is an example of a octahedral molecule?
Answer
Image:
Co2 (image/png)
Image:
Pcl5 (image/png)
Image:
Sf6 (image/png)
Question 4
Question
A trigonal bipyramid contains which two angles between it's bonds?
Answer
120 and 90 degrees
109.5 and 90 degrees
180 and 90 degrees
120 and 180 degrees
Question 5
Question
Describe the shape and bond angle of a methane molecule.
Answer
Tetrahedral with 109.5 degrees bond angles
Trigonal bipyramid with 120 degrees bond angles
Linear with 180 degrees bond angles
Question 6
Question
Why does a water molecule have a bond angle of 104.5 degrees?
Answer
The molecule is a tetrahedral.
The two lone pairs of electrons on the atom of oxygen repel the bonded electron pairs more.
The bonded pair of electrons repel the two lone pairs more.
Question 7
Question
How many lone pairs does an ammonia molecule possess?
Answer
2
1
3
5
4
Question 8
Question
Select the correct statement.
Answer
Lone Pair/Lone Pair > Bonded Pair/Lone Pair > Bonded Pair/Bonded Pair
Bonded Pair/Bonded Pair > Bonded Pair/Lone Pair > Lone Pair/Lone Pair
Bonded Pair/Lone Pair < Bonded Pair/Bonded Pair > Lone Pair/Lone Pair
Question 9
Question
How many bonded electron pairs must there be around the central atom of a compound for the molecule's shape to be a Octahedral?
Answer
5
4
6
8
Question 10
Question
Name the theory that explains the reason for the shape of molecules.
Answer
The electron repulsion theory
Bond theory
The theory of shapes
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