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Chemistry Test ...

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  • Question 1
    1 / -0

    The ionization isomer of [Cr(H2O)4Cl(NO2 )]Cl is :

  • Question 2
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    In the following electron dot structure calculate the formal charge from left to right nitrogen atom ?

  • Question 3
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    Which of the following molecules would be expected to be planar?

    (1) NH3

    (2) SF4

    (3) XeF4

    (4) ICl-4

  • Question 4
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    Which of the following reagents can be used to distinguish a phenol and an alcohol?

  • Question 5
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    A solution of a metal ion when treated with KI gives a red precipitate which dissolves in excess KI to give a colourless solution. Moreover, the solution of metal ion on treatment with a solution of cobalt (II) thiocyanate gives rise to a deep blue crystalline precipitate. The metal ion is

  • Question 6
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    If the bond length of CO bond in carbon monoxide is 1.128 Å, then what is the value of CO bond length in Fe(CO)5?

  • Question 7
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    Which species exhibits a plane of symmetry?

  • Question 8
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  • Question 9
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    The standard reduction potentials of \(\mathrm{Cu}^{2} / \mathrm{Cu}\) and \(\mathrm{Cu}^{2} / \mathrm{Cu}\) are \(0.337 \mathrm{V}\) and \(0.153 \mathrm{V}\) respectively. The standard electrode potential of \(\mathrm{Cu}^{+} / \mathrm{Cu}\) half cell is :

  • Question 10
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    The ionisation energy of solid NaCl is 180 kcal per mol.The dissolution of the solid in water in the form of ions is endothermic to the extent of 1 kcal per mol. If the solvation energies of Na+ and Cl- ions are in the ratio 6 : 5, what is the enthalpy of hydration of sodium ion ?

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