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Home/ Questions/Which of these molecules are linear? Check all that apply. □ BeCl2 Exi Check Answer 0...
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Asked: April 13, 20222022-04-13T08:14:45+00:00 2022-04-13T08:14:45+00:00In: Chemistry

Which of these molecules are linear? Check all that apply. □ BeCl2 Exi Check Answer 0…

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Which of these molecules are linear? Check all that apply. 
A. NO2–
B. XeF2
C. BeCl2
D. SF2
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Linear molecules are those which contain two atoms on the side that are linked to the metal atom in the center.

In order for a molecule to be geometrically linear the lone pair should not be found within the central atom. In order for a molecule be linear in form it must contain up to 3 single pairs in the trigonal bipyramidal.

linearmolecules
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    Michael Roberts
    2022-04-13T08:21:42+00:00Added an answer on April 13, 2022 at 8:21 am
    Concepts and Reason

    Hybridization refers to the process of mixing atomic orbitals with different shapes and energies to produce an equal number (to the number of mixed orbitals). This concept can help to explain molecular geometry, bond angles and molecular structure for molecules.

    VSEPR theory: Valance Shell Electron Pair Repulsion Theory explains that molecular geometry can change due to repulsions between the single pair electrons and the bond pair of electrons in the molecule.

    Fundamentals

    You can count the number of groups around the central atom to determine if there has been hybridization.

    Groups surround by the central atom

    Hybridization

    Molecular geometry

    2

    [katex]{\rm{sp}}[/katex]

    linear

    3

    [katex]{\rm{s}}{{\rm{p}}^2}[/katex]

    Planar

    4

    [katex]{\rm{s}}{{\rm{p}}^3}[/katex]

    tetrahedral

    5

    [katex]{\rm{s}}{{\rm{p}}^{\rm{3}}}{\rm{d}}[/katex]

    Trigonal bipyramidal

    An electron pair is also known as a group.

    According to VSEPR theory, the presence of repulsions between bonded pairs electrons or lone electrons can alter molecular geometry. They are as follows.

    [katex]{\rm{lone}}\,{\rm{pair}}\,{\rm{ – }}\,{\rm{lone}}\,{\rm{pair}}\,{\rm{ > }}\,{\rm{bond}}\,{\rm{pair}}\,{\rm{ – }}\,{\rm{lone}}\,{\rm{pair}}\,{\rm{ > }}\,{\rm{bond}}\,{\rm{pair}}\,{\rm{ – }}\,{\rm{bond}}\,{\rm{pair}}[/katex]

    Given molecules

    1. [katex]{\rm{Xe}}{{\rm{F}}_{\rm{2}}}[/katex]

    In the [katex]{\rm{Xe}}{{\rm{F}}_{\rm{2}}}[/katex]

    2. [katex]{\rm{BeC}}{{\rm{l}}_{\rm{2}}}[/katex]

    In the [katex]{\rm{BeC}}{{\rm{l}}_{\rm{2}}}[/katex]

    3. [katex]{\rm{S}}{{\rm{F}}_{\rm{2}}}[/katex]

    In the [katex]{\rm{S}}{{\rm{F}}_{\rm{2}}}[/katex]

    4. [katex]{\rm{N}}{{\rm{O}}_{\rm{2}}}^{\rm{ – }}[/katex]

    In the [katex]{\rm{N}}{{\rm{O}}_{\rm{2}}}^{\rm{ – }}[/katex]

    1. [katex]{\rm{Xe}}{{\rm{F}}_{\rm{2}}}[/katex]

    2. [katex]{\rm{BeC}}{{\rm{l}}_{\rm{2}}}[/katex]

    3. [katex]{\rm{S}}{{\rm{F}}_{\rm{2}}}[/katex]

    4. [katex]{\rm{N}}{{\rm{O}}_{\rm{2}}}^{\rm{ – }}[/katex]Ans:

    Linear molecules are

    XeF
Bed,
ODIO
SET
NO;

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