Displacement reactions- Enrichment activity

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Class: 8
Subject: Chemistry
Name: _________________________
Date: __________________
ACTIVITY
Instructions:
I.
II.
III.
IV.
V.
VI.
STAND and perform all experiments. DO NOT SIT while performing experiments.
Use small quantities of chemicals and reagents.
Read the labels on the test tubes carefully.
When using a common resource, DO NOT interchange droppers etc. (if required).
Use spatula to put solid chemicals in the test tubes.
CLEAN UP your work station and wash your apparatus before leaving the lab.
Aim: To perform, observe and predict the displacement reactions in different reaction mixtures.
Materials required: Test tubes, test tube stand, spatula, droppers, Magnesium ribbon, Copper turnings, Iron (II) sulphate solution,
Silver nitrate solution.
Procedure and Observation table
(6 marks)
Follow the procedure and record your observations in the table given below:
S.No.
Procedure
Reaction 1
Add Copper turnings in
Iron sulphate solution.
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What do you observe?
(Does the reaction take place? What
gives you an indication that a reaction
is taking place? Mention colour
changes that you may see.)
Page 1
Represent the reaction in the form of a word
equation.
Chemistry8/G/18-19/Patterns of reactivity/Activity1
Reaction 2
Put Copper turnings in
Silver nitrate solution
Reaction 3
Add Magnesium ribbon
pieces to Iron sulphate
solution
Conclusion:
(3 marks)
1. On the basis of your understanding of the reactivity series, explain the observations made For Reaction 1_________________________________________________________________________________________________________
_________________________________________________________________________________________________________
For Reaction 2_________________________________________________________________________________________________________
_________________________________________________________________________________________________________
For Reaction 3_________________________________________________________________________________________________________
_________________________________________________________________________________________________________
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Page 2
Chemistry8/G/18-19/Patterns of reactivity/Activity1
2. On the basis of the above activity and your understanding of the reactivity series, arrange copper, silver, magnesium and
iron in the decreasing order of their reactivity.
Result & understanding:
(2 marks)
(4 marks)
1. A metal which can displace another metal from its salt solution is __________ reactive than the metal in the salt solution.
2. A metal cannot displace a metal which is ______________reactive than it from that metal’s salt solution during a chemical
reaction.
3. Zinc chloride is one of the products when when zinc is added to __________________ acid. ___________________ is the
other product.
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Page 3
Chemistry8/G/18-19/Patterns of reactivity/Activity1
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