Among the following species,identify the isostructural pairs: $NF_3, NO_3^-, BF_3, H_3O^+, HN_3$.

  • A
    $[NF_3, NO_3^-]$ and $[BF_3, H_3O^+]$
  • B
    $[NF_3, HN_3]$ and $[NO_3^-, BF_3]$
  • C
    $[NF_3, H_3O^+]$ and $[NO_3^-, BF_3]$
  • D
    $[NF_3, H_3O^+]$ and $[HN_3, BF_3]$

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Based on the $VSEPR$ model,match the xenon compounds given in List-$I$ with the corresponding geometries and the number of lone pairs on xenon given in List-$II$ and choose the correct option.
List-$I$List-$II$
$(P)$ $XeF_2$$(5)$ Trigonal bipyramidal and three lone pairs of electrons
$(Q)$ $XeF_4$$(3)$ Square planar and two lone pairs of electrons
$(R)$ $XeO_3$$(2)$ Pyramidal and one lone pair of electrons
$(S)$ $XeO_3F_2$$(4)$ Trigonal bipyramidal and no lone pairs of electrons

Arrange the following molecules in the correct order of their bond angles:
$S_8$$A$
$P_4$$B$
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What is the shape of the $SO_2$ molecule?

Which among the following species does not have an angular shape?
$I.$ $ICl_2^+$
$II.$ $NH_2^-$
$III.$ $CS_2$
$IV.$ $H_2Se$

Which set of the following molecules has only one lone pair of electrons on their respective central atoms?
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