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
A.
Cl2>Br2>F2>I2
Bond dissociation energies of halogen family decrease down the group as the size of the atom increases. The bond dissociation energy of fluorine, is, however, lower than those of chlorine and bromine because of interelectronic repulsions present in the small atom of fluorine.
Hence bond energy decreases in the order Cl2 > Br2 > F2 > 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+
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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