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Chemistry
1. Chemical Reactions and Equations
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Q8 of 58 Page 34

Write true or false for the following statements:

The reaction Zn(s) + CuSO4(aq) → ZnSO4(aq) + Cu(s) is type of double displacement reaction

False

The reaction is an example of displacement reaction in which zinc metal displaces other metal, i.e., copper from CuSO4 to form a new compound ZnSO4.


Hence, the given reaction is false.


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6

Write true or false for the following statements:

The insoluble substance formed during a chemical reaction is known as a precipitate.

7

Write true or false for the following statements:

During endothermic reactions, heat is transferred from the reacting substances to the surroundings.

9

Write true or false for the following statements:

Keeping food in airtight containers helps to slow down oxidation.

10

Write true or false for the following statements:

Due to corrosion iron gets a brown coating, copper gets a green coating and silver gets a black coating.

Questions · 58
1. Chemical Reactions and Equations
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