Page 1 - 2. HA (Lab WS_Expt_4)

SAI International School

Class-X
Subject_ Chemistry
Topic-Metal & Non metals

Subtopic- Displacement reactions in order of reactivity series
Lab Worksheet

Name: AdmNo: Class/Sec: ( )
Dt:_
1. It is regarded that each molecule of copper sulphate crystals at room temperature
contains five water molecules as water of crystallisation. Do you see any difference in
them? (Hint: Look at the dehydration reaction of copper sulphate)

2. In the following reaction, A and B are metals. BX is a salt of metal B.
A + BX —> AX + B
Which one of the two metals is more reactive? Give reason.
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3. Why can we safely preserve iron (II) sulphate in a copper vessel whereas the
same can’t be safely preserved in zinc vessel?

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4. How would you devise the procedure to show that Mg > Fe > Cu in reactivity
series? What is the basic principle involved in this Experiment?

MCQs

1. When an iron strip was placed in the copper sulphate
solution, the time required for the colour of the solution to change from blue to green
will be less if:

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