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Purple of Cassius is...

Purple of Cassius is

A

Colloidal solution of gold

B

Colloidal solution of silver

C

Colloidal solution of platinum

D

Oxyacids of gold

Text Solution

Verified by Experts

The correct Answer is:
A
Colloidal solution of gold is called purple of cassius.
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Explore conceptually related problems

Match list I (Colloidal system ) with list II (Example) {:("Column-I","Column-II"),((A)"Emulsifier",(p)"Colloidal solution"),((B)"Xerogel",(q)"Soaps "),((C )"Colloidal electrolyte",(r)"Foil of cellophane"),((D)"Purple of Cassius",(s)"Dextrin"),(,(t)"Gold sol"):}

What is purple of casis ?

The sulphide ion gives purple colour which sodium nitroprusside. The purple colour is due to the formation of:

A2Z-SURFACE CHEMISTRY-AIIMS Questions
  1. Gold sol is an electronegative sol. The amount of electrolyte required...

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  2. If gold number of A, B, C, and D are 0.005, 0.05, 0.5 and 5 respective...

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  3. Purple of Cassius is

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  4. Gold number is maximum for the lyophilic sol is

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  5. Which of the following ions is most effective in the coagulation of fe...

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  6. The gold number of A,B,C and D or 0.04, 0.002, 10 and 25 respectively....

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  7. A colloidal solution is subjected to an electrical field. The particle...

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  8. Which of the following electrolytes is most effective in the coagulati...

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  9. which of the following will have the highest coagulating power for As(...

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  10. Point out the false statement

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  11. For coagulating As(2)S(3) colloidal sol, which of the following will h...

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  12. The density of gold is 19 g//cm^(3). If 1.9xx10^(4) of gold is dispers...

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  13. Milk is a colloid in which

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  14. Tyndall effect in colloidal solution is due to

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  15. Small liquid droplets in another liquid is called

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  16. colloidal solution of arsenious sulphide is coagulated by

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  17. Peptisation is :

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  18. Which of the following is property of colloid?

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  19. If some gelatin is mixed in collidal solution of gold, then it does

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  20. Gold number of a lyophilic sol is such property that:

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