When a piece of copper is placed in an a...

When a piece of copper is placed in an aqueous solution of silver nitrate , the colour of the solution becomes blue. This is due to ________.

A

oxidation of Ag

B

reduction of Cu

C

formation of a complex

D

oxidation of Cu

Text Solution

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The correct Answer is:

D

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What happens when a piece of copper is added to a solution of silver nitrate ?

(a) Why are decomposition reactions called the opposite of combination reactions ? Explain with equations of these reactions. (b) Express the following facts in the form of a balanced chemical equation: "When a strip of copper metal is placed in a solution of silver nitrate, metallic silver is precipitated and a solution containing copper nitrate is formed"

Knowledge Check

When a piece of copper wire is immersed in a solution of aqueous silver nitrate, the solution becomes blue. This is a consequence of :

A

oxidation of silver

B

oxidation of copper

C

formation of copper complex

D

reduction of copper

When a copper rod is dipped in aqueous silver nitrate solution , the colour of the solution changes to blue . This is because

A

Cu is more easily reduced than Ag

B

Ag is more easily reduced than Cu

C

Nitrate ion acts as an oxidizing agent

D

Nitrate ion acts as a reducing agent

When a piece of iron is placed in a solution of copper sulphate, the blue color of the solution is changed to

A

yellow

B

brown

C

green

D

orange

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An iron nail is dropped into a blue- coloured solution of copper sulphate. Will the colour of the solution turn red ?

Copper metal dissolves in an aqueous solution of silver nitrate, imparting it a blue colour. This is because

Cu is dipped in a solution of AgNO_(3) the colour of solution becomes blue due to

Assertion : If a piece of copper is placed in silver nitrate solution, the solution becomes blue. Reason : Displacement reaction takes place and copper goes into the solution.

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