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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 cannot liberate hydrogen from dilute hydrochloric acid ?

Knowledge Check

  • Statement -1. copper liberates hydrogen from a dilute solution of hydrochloric acid Statement-2 E^(@) of Cu is higher than that of H_(2)

    A
    Statement -1 is true, statement -2 is also true, statement -2 is the correct explanation of statement-1
    B
    Statement -1 is true, statement -2 is also true, statement-2 is not the corect explanation of statement-1
    C
    Statement -1 is true, statement -2 false
    D
    Statement -1 is false, statement -2 is true.

  • Assertion: Copper liberates hydrogen from a dilute solution of hydrochloric acid. Reason: Hydrogen is below copper in the electrochemical series.

    A
    If both assertion and reason are true, and reason is the true explanation of the assertion
    B
    if both assertion and reason are true, but reason is not the true explanation of the assertion.
    C
    if assertion is true, but reason is false.
    D
    If both assertion and reason are false.

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

    A
    `Zn`
    B
    `Mg`
    C
    `Fe`
    D
    `Au`

    • Similar Questions

    Explore conceptually related problems

    (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.

    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.

    Assertion: Copper reacts with hydrochloric and liberates hydrogen from the solution of dilute hydrochloric acid. Reason: Hydrogen is below copper in the electrochemical.

    Statement 1: Schiff's regent is a dilute solution of rosaniline hydrochloride in water whoce magneta colour is discharged with aqueous SO_(2) or H_(2)SO_(3) . Statement 2: Schiff's reagent oxidies benzaldehyde to benzoic acid.

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