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Chemistry Test 70
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Chemistry Test 70
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  • Question 1/7
    4 / -1

    Which base is present in RNA but not in DNA?

  • Question 2/7
    4 / -1

    The polymer used for optical lenses is:

  • Question 3/7
    4 / -1

    Which of the following is diamagnetic?

  • Question 4/7
    4 / -1

    Bond order normally gives idea of stability of a molecular species. All the molecules viz. H2, Li2 and B2 have the same bond order yet they are not equally stable. Their stability order is:

  • Question 5/7
    4 / -1

    The molar solubility (in mol L–1) of a sparingly soluble salt MX4 is S. The corresponding solubility product is Ksp. S is given in terms of Ksp by the relation.

  • Question 6/7
    4 / -1

    The wave number of the first emission line in the Balmer series of H-Spectrum is: (R = Rydberg constant):

  • Question 7/7
    4 / -1

    The order of increasing sizes of atomic radii among the elements O, S, Se and As is:

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