Considering the first dissociation which is more acidic and why -
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    NEET Chemistry Solved Question Paper 2008

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    41.

    Considering the first dissociation which is more acidic and why -fumaric acid and maleic acid?

    Maleic acid ionises into maleate ion and H+ while fumaric acid ionises into fumarate iona and H+. Maleate ion stabilises due to the presence of intramolecular H-bond, hence maleic acid is stronger acid than fumaric acid.

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    42.

    Prepare CuSO4.5H2O starting from copper pyrites.

    Answer
    43.

    A cell is represented by Zn|Zn2+ (aq) || Cu2+ (aq)| Cu. Given, Cu2+ + 2e- → Zn, E° = -0.763 V. Write the cell reactions, emf of the cell and state whether the cell reaction will be spontaneous or not?

    Answer
    44.

    Write down true products when n-butyl trimethyl amine is heated strongly.

    Answer
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    45.

    Both phenol and alcohol contains -OH group. But still phenol is more acidic than alcohol. Explain why?

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