Related Questions

    2.

    Which is distilled first?

    A

    Liquid H2{{\rm{H}}_2}

    B

    Liquid CO2{\rm{C}}{{\rm{O}}_2}

    C

    Liquid O2{\rm{Liquid}}\,{{\rm{O}}_2}

    D

    Liquid N2{\rm{Liquid}}\,{{\rm{N}}_2}

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    4.

    Which of the following statements regarding the formation of a covalent bond is INCORRECT?

    A

    The formation of a covalent bond always results in a net decrease in potential energy, leading to greater stability compared to isolated atoms.

    B

    Overlapping of atomic orbitals leads to increased electron density between the nuclei, contributing to bond formation.

    C

    The strength of a covalent bond is inversely proportional to the extent of orbital overlap.

    D

    The stability of a covalent bond arises from the balance between attractive forces between nuclei and electrons, and repulsive forces between nuclei and between electrons.

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    5.

    Which is distilled first?

    A

    Liquid H2{{\rm{H}}_2}

    B

    Liquid CO2{\rm{C}}{{\rm{O}}_2}

    C

    Liquid O2{\rm{Liquid}}\,{{\rm{O}}_2}

    D

    Liquid N2{\rm{Liquid}}\,{{\rm{N}}_2}

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    7.

    A C≑C{\rm{C}} \equiv {\rm{C}} bond is:

    A

    Weaker than C=C{\rm{C}} = {\rm{C}} bond

    B

    Weaker than Cβˆ’βˆ’βˆ’C{\rm{C}}---{\rm{C}} bond

    C

    Longer than Cβˆ’βˆ’βˆ’C{\rm{C}}---{\rm{C}} bond

    D

    Shorter than C=C{\rm{C}} = {\rm{C}} bond

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