Shapes of Molecules

Beschreibung

AS level Chemistry Quiz am Shapes of Molecules, erstellt von Luke Green am 16/05/2017.
Luke Green
Quiz von Luke Green, aktualisiert more than 1 year ago
Luke Green
Erstellt von Luke Green vor etwa 7 Jahre
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Zusammenfassung der Ressource

Frage 1

Frage
One molecule of Hydrogen Gas possesses which molecule shape?
Antworten
  • Tetrahedral
  • Linear
  • Trigonal Planar

Frage 2

Frage
Predict the bond angle in a BF3 molecule.
Antworten
  • 120 degrees.
  • 180 degrees.
  • 109.5 degrees.

Frage 3

Frage
Which of these images is an example of a octahedral molecule?
Antworten

Frage 4

Frage
A trigonal bipyramid contains which two angles between it's bonds?
Antworten
  • 120 and 90 degrees
  • 109.5 and 90 degrees
  • 180 and 90 degrees
  • 120 and 180 degrees

Frage 5

Frage
Describe the shape and bond angle of a methane molecule.
Antworten
  • Tetrahedral with 109.5 degrees bond angles
  • Trigonal bipyramid with 120 degrees bond angles
  • Linear with 180 degrees bond angles

Frage 6

Frage
Why does a water molecule have a bond angle of 104.5 degrees?
Antworten
  • 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.

Frage 7

Frage
How many lone pairs does an ammonia molecule possess?
Antworten
  • 2
  • 1
  • 3
  • 5
  • 4

Frage 8

Frage
Select the correct statement.
Antworten
  • 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

Frage 9

Frage
How many bonded electron pairs must there be around the central atom of a compound for the molecule's shape to be a Octahedral?
Antworten
  • 5
  • 4
  • 6
  • 8

Frage 10

Frage
Name the theory that explains the reason for the shape of molecules.
Antworten
  • The electron repulsion theory
  • Bond theory
  • The theory of shapes
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