Multiple Choice QuestionsWhich one of the following orders is correct for the bond dissociation enthalpy of halogen molecules?
Cl2>Br2>F2>I2
Br2>I2>F2>Cl2
F2>Cl2>Br2>I2
F2>Cl2>Br2>I2
Among the following, the correct order of acidity is
HClO<HClO2<HClO3<HClO4
HClO2<HClO<HClO3<HClO4
HClO4<HClO<HClO <HClO3
HClO4<HClO<HClO <HClO3
Which of the following options represents the correct order?
O2-> O2>O2+
O2-<O2<O2+
O2->O2<O2+
O2->O2<O2+
Nitogen dioxide and sulphur dioxide have some properties in common. which property is shown by one of these, comounds but not the order?
Forms acid -rain
Is a reducing -agent
Is a soluble in water
Is a soluble in water
The maximum bond angle at nitrogen is present in which of the following?
NO2
NO2-
NO2+
NO2+
C.
NO2+
In all of the four molecules NO2- and NO2 have one lone pair thus bond angle is less 120 in the case of NO2- and more than 120 in the case of NO2 but in the NO3- there is no lone pair hence all are bonding pairs leading to an ideal bond angle of 120.
In NO2+, the is no lone pair only bond pair exist thus leading a bond angle is 180.
The 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
Identify the correct order of solubility in aqueous medium
CuS> ZnS> Na2S
ZnS > Na2S> CuS
Na2S> CuS> ZnS
Na2S> CuS> ZnS
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