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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
The correct sequence of polarity of the following molecule
$(1)$ Benzene           $(2)$ Inorganic Benzene
$(3)\, PCl_3F_2$        $(4)\, PCl_2F_3$

$1\,\,\,$-$\,\,\,2\,\,\,$-$\,\,\,3\,\,\,$-$\,\,\,4$

(Where. $P =$ polar, $NP =$ non-polar)

  • A
    $P\,\,\,$-$\,\,\,NP\,\,\,$-$\,\,\,NP\,\,\,$-$\,\,\,P$
  • ✓
    $NP\,\,\,$-$\,\,\,NP\,\,\,$-$\,\,\,NP\,\,\,$-$\,\,\,P$
  • C
    $NP\,\,\,$-$\,\,\,P\,\,\,$-$\,\,\,NP\,\,\,$-$\,\,\,P$
  • D
    $NP\,\,\,$-$\,\,\,P\,\,\,$-$\,\,\,P\,\,\,$-$\,\,\,NP$
✓

Answer

Correct option: B.
$NP\,\,\,$-$\,\,\,NP\,\,\,$-$\,\,\,NP\,\,\,$-$\,\,\,P$
b
In sheet silicates although one $SiO^{4-}_4$ tetrahedron is linked to other three tetrahedrons but the layer/sheet obtained is not planar, as fourth oxygen atom is projecting away from sheet.

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