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What is meant by the molarity of a solution ? What would be the osmotic pressure of a 0.02 molar aqueous solution of urea at `27^(@)C` ? (R = `0.082 L.atm.K^(-1). Mol^(-1)`)

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UNITED BOOK HOUSE-HIGHER SECONDARY EXAMINATION 2016-EXERCISE
  1. What is Schottky defect ? Find out the packing effciency in a simple c...

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  2. What is meant by the molality of a solutin?

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  3. What is meant by the molarity of a solution ? What would be the osmoti...

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  4. Arrange the following solutions in order of decreasing specific conduc...

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  5. Determine DeltaG^@ and the value of the equlibrium constant for the fo...

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  6. Why is the zinc bledne ore roasted before carbon reduction? Answer wit...

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  7. What is Malachite? Write down its formula.

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  8. Explain why Cu^+ ion is not stable in aqueous soltuion.

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  9. State what happens when a solid mixture of KCI and K2Cr2O7 is heated w...

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  10. Write the number of unpaired electron (s) present in Na2[FeO4] [Atomic...

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  11. Explain the cause of chemical similarity between the compounds of Nb a...

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  12. What will happen when bromomethane reacts with an aqueous solution of ...

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  13. What will happen when bromomethane reacts with an aqueous solution of ...

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  14. What will happen when chlorobenzene reacts with a mixture of conc. HNO...

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  15. Identify A, B, C, D, E and F in the following reactions.

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  16. Identify A, B, C, D, E and F in the following reactions.

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  17. An organic compound A(C2H6O) reacts with sodium to form compound B and...

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  18. Arrange the following compounds in decreasing order of their basicity:

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  19. Write the arrow-head equation for the following reactions: Aniline is ...

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  20. Write the organic products in the following reactions:

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