Important Questions of Chemical Bonding and Molecular Structure Chemistry | Zigya

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421.

The correct order of C-O bond length among CO, CO32-, CO2 is,

  • CO2<  CO32-<  CO

  • CO <  CO32-<  CO2

  • CO32- <CO2 <CO

  • CO32- <CO2 <CO


422.

In which of the following pairs, the two species are isostructural?

  • SF4 and XeF4

  • SO32- and NO3-

  • BF3 and NF3

  • BF3 and NF3


423.

In which of the following molecules are all the bonds not equal? 

  • ClF3

  • BF3

  • AlF3

  • AlF3

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424.

Which of the following is not isostructural with SiCl4?

  • SCl4


  • SO42-
  • PO43- 

  • PO43- 

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425.

With respect to the conformers of ethane, which of the following statements is true?

  • Bond angle remains same but bond length changes

  • Bond angle changes but bond length remains same

  • Both bond angle and bond length change

  • Both bond angle and bond length change

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426.

Which of the following pairs of compounds is isoelectronic and isostructural?

  • BeCl2, XeF2

  • Tel2, XeF2

  • IBr2- , XeF 

  • IBr2- , XeF 

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427.

Match the interhalogen compounds of column I with the geometry in column II and assign the correct code

Column I Column II
a) XX' (i) T-shape

b) XX3'

(ii) Pentagonal
bipyramidal

c) XX'5

(iii) Linear
d) XX'7 (iv) Square-pyramidal
  (v) Tetrahedral
  • (a) (b) (c) (d)
    (iii) (iv) (i) (ii)
  • (a) (b) (c) (d)
    (iii) (i) (iv (ii)
  • (a) (b) (c) (d)
    (iv) (v) (iii) (ii)
  • (a) (b) (c) (d)
    (iv) (v) (iii) (ii)
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428.

Which of the following is least soluble in water?

  • C2H6

  • CH3OH

  • CH3NH2

  • C6H5OH


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429.

Among the following compounds, which compound is polar as well as exhibit sp2-hybridisation by the central atom.

  • H2CO3

  • SiF4

  • BF4

  • HClO3


430.

Choose the correct statement from the following

  • NH4+ and CH4 are not isoelectronic species

  • BF3 does not have dipole moment

  • O - Cl - O obeys octet rule

  • O- in O3 is Sp3-hybridised


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