Multiple Choice QuestionsThe correct order of C-O bond length among CO, CO32-, CO2 is,
CO2< CO32-< CO
CO < CO32-< CO2
CO32- <CO2 <CO
CO32- <CO2 <CO
B.
CO < CO32-< CO2
The bond length is the average distance between the centres of nuclei of two bonded atoms. Centres of nuclei of two bonded atoms. A multiple bonds (double or triple bond) is always shorter than the corresponding single bond.
The C- atom is CO32- is sp2 hybridised as shown
The C- atom is CO2 is sp hybridised with a bond distance of carbon -oxygen is 122 pm.
The C- atom in CO is sp hybridised with C-O bond distance is 110 pm:
So the correct order is
CO < CO32-< CO2
In which of the following pairs, the two species are isostructural?
SF4 and XeF4
SO32- and NO3-
BF3 and NF3
BF3 and NF3
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
Which of the following pairs of compounds is isoelectronic and isostructural?
BeCl2, XeF2
Tel2, XeF2
IBr2- , XeF
IBr2- , XeF
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 |
|
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) |
Among the following compounds, which compound is polar as well as exhibit sp2-hybridisation by the central atom.
H2CO3
SiF4
BF4
HClO3
Choose the correct statement from the following
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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