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4. Chemical bonding and molecular structure — Chemistry STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceChemistry4. Chemical bonding and molecular structure1 Mark
MCQ
Among the following compounds the one that is polar and has central atom with $s{p^2} - $ hybridization is
  • ✓
    ${H_2}C{O_3}$
  • B
    $B{F_3}$
  • C
    $Si{F_4}$
  • D
    $HCl{O_2}$
✓

Answer

Correct option: A.
${H_2}C{O_3}$
(a) In ${H_2}C{O_3}$ and $B{F_3}$ central atom are in $s{p^2}$ hybridization but in ${H_2}C{O_3}$ due to the ionic character of $O - H$ bond it will be polar (High electronegativity of oxygen).

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