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The gold number of a faw protective coll...

The gold number of a faw protective colloide are given
`x = 0.005, y = 3.5, z = 40`
The protective nature to these colloidal solutions follow the order:

A

`z gt x gt y`

B

`x lt y lt z `

C

`z gt y gt x `

D

`x gt y gt z`

Text Solution

Verified by Experts

The correct Answer is:
D
Smaller the gold number is its protective power , Hence, the order would be
`x gt y gt z`
Gold number is used for calculating the protective powers of lyophilic colloids.
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Knowledge Check

  • The gold number of some colloids are given below: {:("Colloid","Gold number"),(A,0.01),(B,2.5),(C,20):} The protective nature of these colloids follows the following order

    A
    `C gt B gt A`
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    `A gt B gt C`
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    D
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    A
    AgtBgtCgtD
    B
    BgtAgtCgtD
    C
    DgtCgtAgtB
    D
    DgtCgtBgtA

  • The gold numbers of protective colloids A,B,C and D are 0.04, 0.004 , 10 and 40 respectively. The protective powers of A,B,C and D are in the order:

    A
    `AgtBgtCgtD`
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    `BgtAgtCgtD`
    C
    `DgtCgtAgtB`
    D
    `DgtCgtBgtA`

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