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Chemistry Test-...

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  • Question 1
    4 / -1

    In stoichiometric defect, the ratio of positive and negative ions as indicated by chemical formula of the compound:

  • Question 2
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    What is the hybridization and the shape of \(\mathrm{XeF}_{6}\)?

  • Question 3
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    Which pair of elements with the given atomic numbers is expected to have similar properties?

  • Question 4
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    A gas absorbs a photon of \(355 \mathrm{~nm}\) and emits at two wavelengths. If one of the emissions is at \(680 \mathrm{~nm}\), the other is at:

  • Question 5
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    On addition of \(6.00 \mathrm{~g}\) of a solid to \(30.0 \mathrm{~ml}\) of water. The solid has a molar mass of \(72.0 \mathrm{~g} / \mathrm{mol} .\) What is the molar concentration of the solution? Mass of \(1 \mathrm{~ml}\) water is \(1 \mathrm{~g}\).

  • Question 6
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    The correct order of mobility of hydrated ions of alkali metal in aqueous medium is:

  • Question 7
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    Which of the following forms non-stoichiometric hydrides?

  • Question 8
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    For the redox reaction
    \(\mathrm{Zn}(\mathrm{s})+\mathrm{Cu}^{2+}(0.1 \mathrm{M}) \rightarrow \mathrm{Zn}^{2+}(1 \mathrm{M})+\mathrm{Cu}(\mathrm{s})\)
    Taking place in a cell, \(E_{\text {cell}}^{0}\) is \(1.10\mathrm{~volt}\) . \(E_{cell}\) for the cell will be \(\left(2.303 \frac{R T}{F}=0.0591\right)\)

  • Question 9
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    If the equilibrium constants of the following equilibria\(S O_{2}+\frac{1}{2} O_{2} \rightleftharpoons S O_{3}\) and \(2 SO_{3} \rightleftharpoons 2SO_{2}+O_{2}\) are given by \(\mathrm{k}_{1}\) and \(\mathrm{k}_{2}\)respectively, which of the following reactions are correct?

  • Question 10
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    The shown figure represents polymerization of a compound.Identify the polymerization reaction.

  • Question 11
    4 / -1

    A peptide bond is:

  • Question 12
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    Which method can be used to separate mixture of 1°, 2° and 3° amines?

  • Question 13
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    In the following compounds

    The order of acidity is

  • Question 14
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    Coordination number of Nickel in \(\left[\mathrm{Ni}\left(\mathrm{C}_{2} \mathrm{O}_{4}\right)_{3}\right]^{4-}\) is:

  • Question 15
    4 / -1

    In the context of the Hall-Heroult process for the extraction of Al, which of the following statements is false?

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