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AS Level LEFELAU A (Lefelau A) Quiz on Water, created by Jozzii on 02/03/2015.

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Water

Question 1 of 10

1

Which end of a H2O molecule has a slight negative charge?

Select one of the following:

  • Oxygen end

  • Hydrogen end

Explanation

Question 2 of 10

1

What kind of bond is formed when two water molecules are within close contact of one another?

Select one of the following:

  • Ester

  • Phosphodiester

  • Hydrogen

  • Glycosidic

Explanation

Question 3 of 10

1

Cohesion is the sticking together of water molecules. It is not strong as the hydrogen bonds are very weak.

Select one of the following:

  • True
  • False

Explanation

Question 4 of 10

1

Water attracts polar molecules.

Select one of the following:

  • True
  • False

Explanation

Question 5 of 10

1

Water has....

Select one or more of the following:

  • A low specific heat capacity

  • A high latent heat of vaporisation

  • A high surface tension

  • A maximum density at 6 degrees

  • Hydrogen bonds

Explanation

Question 6 of 10

1

Hydrogen bonds are formed when two water molecules are close together and their opposite charges attract each other. This weak attraction forms the hydrogen bond between the neighbouring molecules.

Select one of the following:

  • True
  • False

Explanation

Question 7 of 10

1

At what temperature does water reach its maximum density?

Select one of the following:

  • 1 degrees

  • 3 degrees

  • 4 degrees

  • 5 degrees

  • 6 degrees

  • 8 degrees

Explanation

Question 8 of 10

1

Which of the following are examples of where water is important in transport.

Select one or more of the following:

  • In the phloem

  • In the transpiration stream

  • During active transport

  • In blood

  • During digestion

Explanation

Question 9 of 10

1

Surface tension allowed the surface film of the standing water to support aquatic insects.

Select one of the following:

  • True
  • False

Explanation

Question 10 of 10

1

A small amount of heat energy is required for a rise in the temperature of water.

Select one of the following:

  • True
  • False

Explanation