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    CBSE

    Subject

    Chemistry
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    NEET Chemistry : Chemical Bonding and Molecular Structure

    Multiple Choice Questions

    91.

    The shape of an orbital is determined by

    • n

    • l

    • m

    • s

    Answer
    • 92.

    The enthalpies of all elements in their standard states are

    • zero

    • >0

    • <0

    • unity

    Answer
    • 93.

    Which of the following is paramagnetic?

    • CO

    • N2

    • O2

    • H2O2

    Answer
    • 94.

    Assuming that Hund's rule in violated,the bond order and magnetic nature of the  diatomic molecule B2 is:

    • 1 and diamagnetic

    • 0 and diamagnetic

    • 1 and paramagnetic

    • O and paramagnetic

    Answer
    • 95.

    The hybridisation and shape of IF5 are respectively:

    • sp3d , trigonal bipyramide

    • sp3d , see saw

    • sp3d , square pyramidal

    • sp3d , pentagonal pyramidal

    Answer
    • 96.

    Hybridization of 1 and 2 carbon atom in

    C1H2 = C2 = CH2 are

    • sp, sp

    • sp2, sp2

    • sp2, sp

    • sp3, sp2

    Answer
    • 97.

    Which of the following gives correct arrangement of compounds involved based on their bond strength ?

    • HF > HCl > HBr > HI

    • HI > HBr > HCl > HF

    • HF > HBr > HCl > HI

    • HCl > HF > HBr > HI

    Answer
    • 98.

    Number of orbitals in L energy level

    • 1

    • 2

    • 3

    • 4

    Answer
    • 99.

    Using MO theory, predict which of the following species has the shortest bond length?

    • O22+

    • O2+

    • O2-

    • O22-

    Answer
    • 100.

    H-bond is strongest in

    • C2H5OH

    • H-F

    • H2O

    • CH3COCH3

    Answer
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