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Chemistry Test 5

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Chemistry Test 5
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  • Question 1
    4 / -1

    In a given shell, the order of screening effect is

    Solution

    The order of screening effect in a given shell are in order s > p > d > f. 

    Hence, option A is correct.

     

  • Question 2
    4 / -1

    Nitrogen differs from P, As, Sb and Bi in the following properties

    Solution

    All of these

     

  • Question 3
    4 / -1

    The following acids have been arranged in the order of decreasing acid strength. Identify the correct order. 
    (I) ClOH (II) BrOH (III) IOH

    Solution

    The oxidation state of halogens is same + 1. Therefore the acidic character depends only upon the electronegativity. Higher the electronegativity of the halogen more easily it will pull the electrons of O – H bond toward itself and hence, stronger is the acid.

     

  • Question 4
    4 / -1

    The IUPAC name for [Pt(py)4] [PtCl4] is

    Solution

    The IUPAC name for [Pt(py)4] [PtCl4] is tetrakis(pyridine)platinum(II) tetrachloroplatinate(II).

     

  • Question 5
    4 / -1

    According to crystal field theory, octahedral splitting and tetrahedral splittings of d orbitals caused by the same ligands are related through the expression

    Solution

    We have 4ïo = 9ït

     

  • Question 6
    4 / -1

    Low reactivity of vinyl chloride and chlorobenzene is due to:

    Solution

    Low reactivity of vinyl chloride and chlorobenzene is due to mesomeric effect or resonance. Due to resonance, the partial double bond character is developed between halogen and carbon due to which reactivity decreases.

     

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