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Chemical Bonding Test - 12

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Chemical Bonding Test - 12
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  • Question 1
    1 / -0

    Which of the following molecules/ions possess bent geometry? 

    1. I3- 

    2. XeF2 

    3. H2O 

    4. SO2

    Solution

    (3) and (4) have bent shapes.

     

  • Question 2
    1 / -0

    Which of the following molecules is not linear in shape?

    Solution

    Chlorite ion, ClO2-, is bent shaped (angular). The bond angle of O-Cl-O is 105o because of two pairs of bonding electrons and two lone pairs of electrons.

     

  • Question 3
    1 / -0

    The correct order of bond angles in H2O, NH3, CH4 and CO2 is

    Solution

    Bond angle decreases with increase in the number of lone pairs on the central atom.

    Thus, the correct order of bond angles is CO2 > CH4 > NH3 > H2O.

     

  • Question 4
    1 / -0

    Among LiCl, BeCl2, BCl3 and CCl4, the covalent bond character follows the order

    Solution

    Based on Fajans' rule (Covalent nature  Charge on metal), the correct order of covalent nature is LiCl < BeCl2 < BCl3< CCl4.

     

  • Question 5
    1 / -0

    Which of the following molecules bears one lone pair on the central atom with bent shape?

    Solution

    The molecules which have two bond pairs and one lone pair of electrons are sp2 hybridised with bent geometry are SO2, CCl2 , etc. The molecules which have two bond pairs and two lone pair of electrons are sp3 hybridised with bent shape are H2O, F2O, O3, etc.

     

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