Identification of Ions and Gases Quiz

15 Questions

Quiz Description

One very important aspect of gcse chemistry is the identification of ions (which is an atom or molecule having a net electrical charge, this charge could be negative as in the case of an electron, positive as in the case of protons or just neutral). gcequiz.com has brought together questions in the identification of ions and gasses as seen in the gcse. Questions that are up to examination standards.

There are so many ways to test the presence of an ion in a gas or in a solution. Some of these methods include flame tests, it’s reactivity with some metal wires such as nichrome or platinum.

Apart from chemistry quizzes, other quizzes have been made available for you on this platform to ease your studies and preparations for the end of year exams.

Good luck

1:

Four gas jars each contain one of the gases ammonia, chlorine, hydrogen chloride and oxygen. A

strip of damp blue litmus paper and a strip of damp red litmus paper are placed in each jar.

In which gas jar will both the damp blue litmus paper and the damp red litmus paper change

colour?


<p>Four gas jars each contain one of the gases ammonia, chlorine, hydrogen chloride and oxygen. A</p> <p>strip of damp blue litmus paper and a strip of damp red litmus paper are placed in each jar.</p> <p>In which gas jar will both the damp blue litmus paper and the damp red litmus paper change</p> <p>colour?</p>
Correct
  • 1:
    A
  • 2:
    B
  • 3:
    C
  • 4:
    D
2:

The scheme shows a sequence of reactions starting from compound Y.


<p>The scheme shows a sequence of reactions starting from compound Y.</p>
Correct
  • 1:
    A
  • 2:
    B
  • 3:
    C
  • 4:
    D
3:

A student mixed together aqueous solutions of Y and Z. A white precipitate formed.

Which could not be Y and Z?


<p>A student mixed together aqueous solutions of Y and Z. A white precipitate formed.</p> <p>Which could not be Y and Z?</p>
Correct
  • 1:
    A
  • 2:
    B
  • 3:
    C
  • 4:
    D
4:

A liquid reacts with each of sodium carbonate, potassium hydroxide and ethanol. What is the liquid?


Correct
  • 1:
    aqueous ammonia
  • 2:
    ethanoic acid
  • 3:
    ethyl ethanoate
  • 4:
    sodium hydroxide
5:

Which compound, on combustion, never forms carbon?


Correct
  • 1:
    carbon monoxide
  • 2:
    ethanol
  • 3:
    ethene
  • 4:
    methane
6:

Which compound when in aqueous solution will produce a red / brown precipitate on the addition of an aqueous solution of Fe 3+ ions?


Correct
  • 1:
    hydrogen chloride
  • 2:
    sodium chloride
  • 3:
    sodium hydroxide
  • 4:
    sulfur trioxide
7:

Sulfur is burnt in air.

Which statement about this reaction is correct?


Correct
  • 1:
    The gas formed turns aqueous potassium dichromate( VI ) from green to orange.
  • 2:
    The product is used as a food preservative.
  • 3:
    The reaction is endothermic.
  • 4:
    The reaction is reversible.
8:

In which pair do neither of the gases change the colour of damp blue litmus paper?


Correct
  • 1:
    ammonia and hydrogen
  • 2:
    ammonia and hydrogen chloride
  • 3:
    carbon dioxide and chlorine
  • 4:
    carbon dioxide and sulfur dioxide
9:

Aqueous silver nitrate is added to separate solutions of potassium chloride and sodium iodide.

What are the colours of the precipitates formed?


<p>Aqueous silver nitrate is added to separate solutions of potassium chloride and sodium iodide.</p> <p>What are the colours of the precipitates formed?</p>
Correct
  • 1:
    A
  • 2:
    B
  • 3:
    C
  • 4:
    D
10:

When pure gas X was passed through the apparatus shown, the copper( II ) oxide turned pink and the lime water stayed colourless.


<p>When pure gas X was passed through the apparatus shown, the copper( II ) oxide turned pink and the lime water stayed colourless.</p>
Correct
  • 1:
    A
  • 2:
    B
  • 3:
    C
  • 4:
    D
11:

The addition of dilute acid to a solution containing the anion Q and the subsequent use of limewater can be used to identify the anion Q.

What is Q?


Correct
  • 1:
    a carbonate
  • 2:
    a chloride
  • 3:
    an iodide
  • 4:
    a sulfate
12:

Which ion reacts with aqueous ammonia to give a precipitate that dissolves in an excess of ammonia?


<p>Which ion reacts with aqueous ammonia to give a precipitate that dissolves in an excess of ammonia?</p>
Correct
  • 1:
    A
  • 2:
    B
  • 3:
    C
  • 4:
    D
13:

Which statement about aqueous sodium chloride is correct?


Correct
  • 1:
    It contains sodium atoms.
  • 2:
    It contains two different types of molecules.
  • 3:
    It does not conduct electricity.
  • 4:
    It forms a white precipitate when added to aqueous silver nitrate.
14:

Substance Q is a soluble salt.

An aqueous solution of Q is tested as shown.


<p>Substance Q is a soluble salt.</p> <p>An aqueous solution of Q is tested as shown.</p>
Correct
  • 1:
    A
  • 2:
    B
  • 3:
    C
  • 4:
    D
15:

A mixture of two gases has no effect on either damp blue litmus paper or damp red litmus paper.

Which gases are present in the mixture?


Correct
  • 1:
    ammonia and oxygen
  • 2:
    carbon dioxide and sulfur dioxide
  • 3:
    chlorine and hydrogen
  • 4:
    chlorine and hydrogen

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Identification of Ions and Gases Quiz
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