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Chemistry : Experiments with Chemical Reactions


Answer the questions related to the chemical reaction that occurs in the experiment described below.

Formats Quiz Review
Multiple choice

Your Performance  

1.

An iron rod is kept for some time in a beaker containing hydrated copper [II] sulfate (cupric sulfate) solution.
The color change observed in the hydrated copper [II] sulfate solution is ...

  from green to brown

  from blue to green

  from green to blue

  Half-n-half Clue
 

2.

The reason for the color change is ...

  that the iron has diffused into the hydrated copper [II] sulfate solution

  that the water content in the hydrated copper [II] sulfate solution has reduced

  that the element iron present in the rod has taken the place of the element copper present in the hydrated copper [II] sulfate solution

  Half-n-half Clue
 

3.

The deposition observed on the iron rod is ...

  copper

  iron

  sulfur

  Half-n-half Clue
 

4.

A balanced equation for this chemical reaction is ...

  Fe + Cu2SO4 → FeSO4 + 2 Cu

  Fe + CuSO4 → FeSO4 + Cu

  2 Fe + 3 CuSO4 → Fe2(SO4)3 + 3 Cu

  Half-n-half Clue
 

5.

The type of chemical reaction that has taken place is called a ...

  double decomposition reaction

  direct combination reaction

  simple displacement reaction

  Half-n-half Clue
 

6.

Potassium chloride solution is added to silver [I] nitrate (argentous nitrate) solution in the beaker. The beaker is kept for some time.
The new precipitate formed in the beaker is ...

  Silver [I] nitrate

  Potassium nitrate

  Silver [I] chloride

  Half-n-half Clue
 

7.

The color of this new precipitate as observed is ...

  grey

  white

  purple

  Half-n-half Clue
 


 
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  • Chemical Reactions
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