CBSE
Multiple Choice QuestionsThe correct bond order in the following species is
O22+ > O+2> O2-
O22+ < O+2< O2-
O22+ > O+2< O2-
O22+ > O+2< O2-
Acidity of diprotic acids in aqueous solutions increases in the order
H2S < H2Se< H2Te
H2Se <H2S <H2Te
H2Te <H2S < H2Se
H2Te <H2S < H2Se
Maximum deviation from ideal gas expected from
H2 (g)
N2 (g)
CH4 (g)
CH4 (g)
Which is the strongest acid in the following?
H2SO4
HClO3
HClO4
HClO4
Identify the correct order of solubility in aqueous medium
CuS> ZnS> Na2S
ZnS > Na2S> CuS
Na2S> CuS> ZnS
Na2S> CuS> ZnS
XeF2 is isostructural with
TeF2
ICl-2
SbCl3
SbCl3
Which one of the following molecules contains no pi -bond?
CO2
H2O
SO2
SO2
Which of the following is a polar molecule?
BF3
SF4
SiF4
SiF4
Which of the following statements is not valid for oxoacids of phosphorus?
Orthophosphoric acid is used in the manufacture of triple superphosphate
All oxoacids contain tetrahedral four coordinated phosphorus
All oxoacids contain tetrahedral four coordinated phosphorus
In Which of the following arrangement, the given sequence is not strictly according to the property indicated against it ?
HF < HCl< HBr < HI : increasing acidic strength
H2O < H2S < H2Se < H2Te : increasing pKa values.
NH3 < PH3 < AsH3 < SbH3 : increasing acidic character
NH3 < PH3 < AsH3 < SbH3 : increasing acidic character
