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Given reasons: concentrated nitric acid ...

Given reasons: concentrated nitric acid renders aluminium passive.

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ASSAM ACADEMIC CENTRE-EXAM PAPER 2012-Example
  1. What do you mean by Zwitter ion?

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  2. What are essential and non-essential amino acids? Give one example of ...

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  3. The rate constant of a reaction is 3xx10^2 min^-1. What is the order o...

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  4. The concentration of a solution having concentration 0.24M is reduced ...

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  5. A reaction, SO2Cl2 rarr SO2 + Cl2 is first order reaction with half li...

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  6. For the reaction 4NH3 + 5O2 rarr 4NO + 6H2O, the rate of formation of ...

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  7. A certain reaction is 50% complete in 20 minutes at 300K and the same ...

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  8. Answer the following: Why H2O is a liquid whereas H2S is gas at room t...

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  9. Arrange the following in increasing order if acid strength: HCl, HI, H...

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  10. Complete the following equation: XeF6 + H2O rarr.

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  11. Explain the bleaching action of Cl2.

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  12. Give reasons: The bond dissociation energy of F2 is less than that of ...

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  13. Given reasons: concentrated nitric acid renders aluminium passive.

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  14. Given reasons: draw the structure of XeOF4.

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  15. Complete the following chemical reaction equations: P4 + NaOH + H2O ra...

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  16. Complete the following chemical reaction equations: I^(-)(aq) + H2O(l)...

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  17. How will you convert the following? Give equations only. Benzene to ac...

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  18. How will you convert the following? Give equations only. Propene to ac...

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  19. An organic compound (A) (molecular formula, C4H8O2) was hydrolysed wit...

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  20. A compound X(C2H4O) on oxidation gives Y(C2H4O2). 'X' undergoes halofo...

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