During an experiment, iron nails are placed in copper sulphate solution, and a reddish-brown deposit forms on the nails. What does this observation demonstrate about the type of chemical reaction and the substances involved?
A displacement reaction occurs, forming copper metal on the iron nails
Iron is more reactive than copper, so it displaces copper from copper sulphate solution, forming a reddish-brown copper deposit on the nails.
This is a displacement reaction, not a double displacement, decomposition, or combination reaction, since one element replaces another in a compound.
Hence, 'A displacement reaction occurs, forming copper metal on the iron nails' is the correct answer.
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Important Questions from Chemical Reaction
Which of the following statement is/are true?
I. In physical change new substance is formed. substance is formed.
II. In chemical change no new substance is formed.
Which of the following cells involves similar chemical reactions?
The information not obtained from balanced chemical equation is
Oxygen cannot be obtained by which one of the following methods?
Which of the following statement is correct?
I. Insoluble salt is obtained by precipitation reaction.
II. Addition of oxygen or loss of hydrogen is called oxidation.
