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Name the depressant used in separation o...

Name the depressant used in separation of ZnS from PbS by froth floatation process.

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The ore that is concentrated by froth floatation process is

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OSWAAL PUBLICATION-Sample Paper 2-Exercise
  1. Mention the concentration of H^(+) ions in the solution used in SHE.

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  2. 2SO(2)(g) + O(2) (g) overset(NO(2)(g))to Is this reaction an example ...

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  3. Name the depressant used in separation of ZnS from PbS by froth floata...

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  4. Which noble gas does not occur in nature?

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  5. R-X + NaI overset("Dry Acetone")to RI + NaX. This reaction is known a...

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  6. Give reason : Acetic acid is soluble in water.

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  7. Among the following which is a fat soluble vitamin Vitamin - B(12), Vi...

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  8. Give two differences between p-type & n-type semiconductors.

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  9. What is limiting molar conductivity? Represent graphically the variati...

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  10. Rate constant of a first order reaction is 6.93 xx 10^(-3) mi n^(-1). ...

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  11. (i) What is actinide contraction? (ii) Which is the common oxidation s...

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  12. (i) What is actinide contraction? (ii) Which is the common oxidation s...

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  13. How do you prepare diethyl ether by dehydration of ethanol.

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  14. How do you convert benzamide to benzoic acid?

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  15. Give one example cach for (a) Tranquilizer (b) Antiseptic.

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  16. What is saponification with an example.

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  17. How copper is refined by electrolytic method?

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  18. (i) Write the structure and mention basicity of hypo phosphorous acid....

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  19. (i) Write the structure and mention basicity of hypo phosphorous acid....

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  20. Draw the flow chart for the manufacture of sulphuric acid by Contact p...

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