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Assertion: Copper liberates hydrogen fro...

Assertion: Copper liberates hydrogen from a solution of dilute hydrochloric acid.
Reason: Hydrogen is above copper in the electro- chemical series.

A

If both assertion and reason are true and the reason is the correct explanation of the assertion.

B

If both assertion and reason are true but reason is not the correct explantion of the assertion.

C

If assertion is true but reason is false.

D

If assertion is false but reason is true.

Text Solution

Verified by Experts

The correct Answer is:
D
`Cu` cannot liberate `H_(2)` from a solution of dilute `HCl` as hydrogen is above copper in the electrochemical series.
`E_(H^(+//_(1//2)H_(2)))^(@)=+-0.00` , `E_(Cu^(2+//_(Cu))=+0.34`.
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Assertion A: Copper does not liberate hydrogen from the solution of dilute hydrochloric acid. Reason (R): Hydrogen is below copper in the electrochemical series.

The questions consist of two atatements each, printed as Assertion and Reason. While answering these questions you are required to choose any one of the following four responses : copper reacts with hudrochloric acid and ilberates hudrogen from the solution of dilute hydrochloric acid. Hydrogen is below copper in the electrochemical series.

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Assertion (A): Cu liberates H_(2)(g) from a dilute solution of HCl . Reason (R): Hydrogen is below Cu in the electrochemical series.

Why does not copper liberate hydrogen from acids. ?

Does copper react with dilute hydrochloric acid ?

Which of the following metals donot liberate hydrogen from dilute hydrochloric acid ?

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