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Why are substance like platinum and pall...

Why are substance like platinum and palladium often used for carrying out electrolysis of aqueous soltion?

Text Solution

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The correct Answer is:
Platinum and palladium are inert electrodes and do not react with the ions of the electrolyte or with the products formed in electrolysis. So they are used as electrodes.
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Knowledge Check

  • Which of the substances Na, Hg, S, Pt and graphite can be used as electrodes in electrolytic cells having aqueous solution? Na, Pt and graphite Hg, pt and graphite Pt and graphite only Na and S only

    A
    Na, Pt and graphite
    B
    Hg,pt and graphite
    C
    Pt and graphite only
    D
    Na and S only

  • Statement 1 : Displacement reactions of chlorine, bromine and iodine using fluorine are not generally carried out in aqueous solution. Statement 2 : Fluorine being highly reactive attacks water and displaces the oxygen of water.

    A
    Statement 1 is 'True, statement 2 is True, Statement 2 is Correct 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.

  • Assertion : Displacement reactions of chlorine, bromine and iodine using fluorine are not generally carried out in aqueous solution. Reason : Fluorine being highly reactive attacks water and displaces the oxygen of water.

    A
    If both (A) and (R) are correct and (R) is the correct explanation of (A).
    B
    If both (A) and (R) are correct, but (R) is not the correct explanation of (A).
    C
    If (A) is correct, but (R) is incorrect.
    D
    If both (A) and (R) are incorrect.

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