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Chemistry Test ...

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  • Question 1
    1 / -0

    The spectrum of He is expected to be similar to that of

  • Question 2
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    What will be the geometry of a molecule with dsp2 or sp2d hybridisation?

  • Question 3
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    Consider the ground state configuration of Cr atom (Z = 24). The total numbers of electrons with azimuthal quantum numbers l = 1 and l = 2, respectively, are

  • Question 4
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    Which of the following molecules/ions does not contain unpaired electrons?

  • Question 5
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    The maximum number of intermolecular hydrogen bonds in a molecule of H2O is

  • Question 6
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    Which of the following statements is incorrect?

  • Question 7
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    The radius of the first Bohr's orbit for hydrogen is 0.53A0. The radius of the third Bohr's orbit is

  • Question 8
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    The bond order in \(\mathrm{CO}_{3}^{2-}\) ion is

  • Question 9
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    Which of the following statements is/are correct regarding the reducing and oxidising properties of elements?
    1. A metal \(M,\) for which \(E^{\circ}\) for the half reaction \(M^{n+}+n e^{-} \rightarrow M\) is highly negative, will be a good reducing agent.
    2. The oxidising power of the halogens decreases from chlorine to iodine.
    3. The reducing power of hydrogen halides increases from hydrogen chloride to hydrogen iodide.

  • Question 10
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    Directions: The following question has four choices out of which ONLY ONE is correct.

    On fermentation of sugar in an enzymatic solution that is initially 0.24 M, the concentration of sugar reduces to 0.06 M in 20 hours and 0.015 M in 40 hours. Which of the following statements is correct?

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