Alex Lyes
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A-Level Chemistry Quiz on OCR B A-Level Chemistry Elements from the Sea Quiz, created by Alex Lyes on 22/05/2016.

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Alex Lyes
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OCR B A-Level Chemistry Elements from the Sea Quiz

Question 1 of 15

1

Fill the blank space to complete the text.

Anions go to the .

Explanation

Question 2 of 15

1

Fill the blank space to complete the text.

Cations go to the .

Explanation

Question 3 of 15

1

Fill the blank space to complete the text.

Electolysis is the breaking down of a substance using .

Explanation

Question 4 of 15

1

This is an example of a half equation at the anode:
2Cl- (l)  Cl2 (aq) + 2e-

Select one of the following:

  • True
  • False

Explanation

Question 5 of 15

1

What is produced at the cathode if the element is more reactive than hydrogen

Select one or more of the following:

  • The element itself

  • Hydrogen gas

Explanation

Question 6 of 15

1

What is the most common oxidation state of oxygen?

Select one of the following:

  • +1

  • -1

  • -2

  • +2

Explanation

Question 7 of 15

1

The oxidation state of a monatomic ion is 0.

Select one of the following:

  • True
  • False

Explanation

Question 8 of 15

1

In a redox reaction

Select one or more of the following:

  • Loss of electrons is called oxidation

  • Loss of electrons is called reduction

Explanation

Question 9 of 15

1

Reducing agents are oxidised and oxidising agents are reduced.

Select one of the following:

  • True
  • False

Explanation

Question 10 of 15

1

Volatility of halogens down the group.

Drag and drop to complete the text.

    decreases
    increases
    stays the same

Explanation

Question 11 of 15

1

Halogens are more soluble in organic solvents than in water because

Select one of the following:

  • They are polar

  • They are non-polar

  • They don't contain covelant bonds

Explanation

Question 12 of 15

1

Chlorine is a at RTP.

Drag and drop to complete the text.

    shiny grey liquid
    yellow-green gas
    red-brown liquid
    pale yellow gas

Explanation

Question 13 of 15

1

HF and HCl are not stable when heated.

Select one of the following:

  • True
  • False

Explanation

Question 14 of 15

1

An equilibrium constant that is less than 1 lies to the .

Drag and drop to complete the text.

    left
    right
    middle

Explanation

Question 15 of 15

1

Fill the blank spaces to complete the text.

Increasing the pressure in an equilibrium reaction shifts the posisition of equilibrium to the side with gas molecule to the pressure.

Explanation

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