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Why are substance such as platinum and p...

Why are substance such as platinum and palladium often used for carrying out electrolysis of aqueous solutions?

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Substances such as platinum and palladium are often used for carrying out electrolysis of aqueous solutions due to the following reasons`:`
`a.` Chemical inertness `:` Platinum and palladium are chemically inert.
`b.` Adsoptive capacity `:` Platinum and palladium have good absorptive capacity for hydrogen. The adsorbed hydrogen is very active and hence platinum and palladium be pronounced catalytic activity.
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Knowledge Check

  • Electrolysis of aqueous HCl solution produces

    A
    `H_2` gas at the anode
    B
    `H_2` gas at the cathode
    C
    `Cl_2` gas at the cathode
    D
    `Cl_2` and `O_2` gases both at the anode.

  • Electrolysis of aqueous HCl solution produces

    A
    `H_(2)` gas at the anode
    B
    `H_(2)` gas at the cathode
    C
    `Cl_(2)` gas at the cathode
    D
    `Cl_(2)` and `O_(2)` gases both at the anode

  • But -2- can be obtained by electrolysis of an aqueous solution of

    A
    `2,3-`Dimethyl maelic acid
    B
    `2,2-`Dimethylbutaneodioic acid
    C
    `2-`Methylbutanedioci acid
    D
    `2,3-`Dimethylbutanedioic acid

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