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Give one reason why a finely divided sub...

Give one reason why a finely divided substance is more effective as an addorbent?

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UNITED BOOK HOUSE-SET-12-Exercise
  1. Write down the relatiuon between the emf of a galvanic cell and the Gi...

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  2. Write two differeneces between physisorption and chemisorption.

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  3. Give one reason why a finely divided substance is more effective as an...

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  4. What is an antiseptic?

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  5. What is colligative property? Define osmotic pressure.

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  6. What would be the osmotic pressure of a 0.02 molar aqueous solution of...

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  7. What are Micelles? Given example of heterogeneous catalyses.

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  8. Explain the formation of delta at the mouth of the river where it meet...

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  9. What is the hybridisation state of Xenon in XeOF4?

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  10. Between white & red phosphorus which one is more reactive & why?

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  11. Explain why [Ti(H2O)6]^(3-) is coloured while [Sc(H2O)6]^(3+) is colou...

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  12. What is co-polymer? Give example.

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  13. Silver crystalise in face centred cubic lattice. If edge length the un...

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  14. What is sehottky defect?

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  15. What is meant by the molality of a solution. Find the molecular weight...

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  16. Write down the appropriate Nernst equation for the followign volataic ...

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  17. Write down Kohlrausch's law of independent migration of ions. Find out...

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  18. Differentiate between the following: Calcination and roasting

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  19. Write the composition of electrolytes used in the extraction of alumin...

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  20. What is Lanthanide contraction?

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