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Statement 1 Copper liberates hydrogen fr...

Statement 1 Copper liberates hydrogen from a dilute solution of hydrochloric acid
Statement 2 `E^(@)` of Cu is higher than of `H_(2)`

A

Statement 1 is true statement 2 is true , statement 2 is a corrrect explanation for statement 1

B

Statement 1 is true statement 2 is true statement 2 is not a correct explanation for statement 1

C

Statement 1 is true statement 2 is false

D

Statement 1 is false statement 2 is true

Text Solution

Verified by Experts

The correct Answer is:
d
Correct statement 1 copper does not librate `H_(2)` from dil HCI
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Why does not copper liberate hydrogen from acids. ?

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

Which of the following metals cannot liberate hydrogen from dilute hydrochloric acid ?

Assertion A: Copper does not liberate hydrogen from the solution of dilute hydrochloric acid. Reason (R): Hydrogen is below copper in the electrochemical series.

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

(a). Explain why Mn^(3+) is less stable than Mn^(22+) and M^(4+) ions? (b). Standard reduction potential of copper is greatr than that of hydrogen yet is librates hydrogen from a concentrated solution of hydrochloric acid. Explain this fact with proper reasoning. Cu^(2+)+2etoCu_(s) E_((Cu^(2+))/(Cu))^(ɵ)=0.34"volt" 2H^(o+)+2etoH_(2(g)) E_((H^(o+))/(H_2))=0.00"volt" (c). An aqueous solution of FeCl_3 is slightly yellowish in colour. (d). Cu(I) compounds are not known in aqueous solution.