Chemistry Level 3 (3.4)

Question 1 of 5

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A central atom bonded to 6 negative regions with 2 pairs of lone pairs is called...?

Select one of the following:

  • sea-saw

  • square planar

  • square pyramid

Question 2 of 5

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Which of these apply to drawing lewis structures?

Select one or more of the following:

  • Count total number of valence electrons.

  • Underline the central atom

  • The atom that is the "most electron needy," ( the one which is further right on the periodic table) is placed in the middle.

  • Link other atoms to the central atom using single covalent bond (- =2e).

  • All the atoms must contain 8 electrons except Be=4 , B=6 and H=2

  • If an atom has insufficient electrons, take a lone pair from a neighbour and create multiple bonds between them.

Question 3 of 5

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Which of these have a polar bond.

Select one of the following:

  • H-H

  • H-F

Question 4 of 5

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What makes a molecule polar?

Select one or more of the following:

  • Same atoms bonded together

  • Different atoms bonded together

  • 3D symmetrical molecule

  • 3D asymmetrical molecule

Question 5 of 5

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The shape of the PCl3 molecule is trigonal pyramid.

Select one of the following:

  • True
  • False
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Chemistry Level 3 (3.4)

Nyasha Makunga
Quiz by , created about 1 year ago

Demonstrate understanding of thermo-chemical principles and the properties of particles and substances.

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Nyasha Makunga
Created by Nyasha Makunga about 1 year ago
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