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Hardy-schulze rule sates that :-...

Hardy-schulze rule sates that :-

A

Charge of the cations or anions has no effect on the coagulation of a colloidal solution.

B

Non-electrolytes have better coagulation action on colloids than electrolytes.

C

Sols are coagulated only by those ions whose charge is similar to that of the solution.

D

Sols are coafulated by ions whose charge is opposite to that of their own and the ions of higher charge are much more effective then the ions of lower charge.

Text Solution

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The correct Answer is:
D
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Knowledge Check

  • Hardy-Schulze rule explains the effect of electrolytes on the coagulation of colloidal solution. According to this rule, coagulation power of cations follow the order

    A
    `Ba^(+2)gt Na^(+) gt Ai^(+3)`
    B
    `Al^(+3)gtNa^(+)gt Ba^(+2)`
    C
    `Al^(+3)gtBa^(+2) gt Na^(+)`
    D
    `Ba^(+2) gt Al^(+3)gtNa^(+)`

  • According to Hardy - Schulze rule , which if the following has highest flocculating power?

    A
    `AI^(3+)`
    B
    `Ba^(2+)`
    C
    `Na^(+)`
    D
    None of the above

  • According to Hardy - Schulze rule, the coagulating power of cation follows the order :

    A
    `Na^(+)gtBa^(2+)gtAl^(3+)`
    B
    `Al^(3+)gtBa^(2+)gtNa^(+)`
    C
    `Ba^(2+)gtAl^(3+)gtNa^(+)`
    D
    `Al^(2+)gtNa^(+)gtBa^(2+)`

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