Which 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⁺

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

1138.

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