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Give the composition of fools gold ....

Give the composition of fools gold .

A

(A)`FeS`

B

(B)`ZnO`

C

(C)`ZnCO_3`

D

(D)`FeS_2`

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UNITED BOOK HOUSE-SET-6-EXERCISE
  1. Calculate the emf and write the chemical reaction for the cell constru...

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  2. Calculate the molar conductance of 0.01 (M) KCI solution. Sp. conducta...

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  3. Give the composition of fools gold .

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  4. Why Zns can't be roasted? Explain. Why Na, is extracted by electrolysi...

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  5. Why is the atomization energy of transition elements too high? Which o...

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  6. Why transition metals forms interstitial compounds? Spin only magnetic...

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  7. What is S(N^1) reaction? Discuss in the context of the reaction tert b...

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  8. How would you eliminate peroxide from ether. How would you identify ph...

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  9. How would you convert What is schiff's base?

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  10. How many chiral carbon atom are there in Aldohexose. How many isomers ...

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  11. What do you mean by temperature co-efficiency for a reaction? Draw the...

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  12. If the reaction rate for chemical reaction be 5.4xx10^(-4) s^(-1) at 2...

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  13. What happens when: H3PO2 is added to acidified KMnO4 soln.

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  14. What happens when: A mixture of SiO2 and XeF6 is heated? Which compoun...

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  15. How would you convert: Benzoic acid rarr Sulfanilic acid.

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  16. How would you convert: Acetylene rarr Acetone.

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  17. What is Rochellies's salt?

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  18. How would you sistinguish chemically: Acetaldehyde & Acetone.

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  19. How would you distinguish chemically: Carbolic acid & Benzoic acid.

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  20. What is phorone?

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