Assertion : H₂O₂ has higher boiling point than water.

Reason : H₂O₂ has stronger dipole-dipole interactions than that shown by water.

• If both assertion and reason are true and reason is the correct explanation of assertion.

• If both assertion and reason are true but reason is not the correct explanation of assertion

• If assertion is true but reason is false.

• If both assertion and reason are false.

Assertion: Permanent hardness of water is removed by treatment with washing soda.

Reason: Washing soda reacts with soluble calcium and magnesium chlorides and sulphates in hard water to form insoluble carbonates.

• If both assertion and reason are true and reason is the correct explanation of assertion.

• If both assertion and reason are true but reason is not the correct explanation of assertion.

• If assertion is true but reason is false.

• If both assertion and reason are false.

Which of the following is used as moderator :

• Hard water

• Heavy water

• Non-ionised water

• Mineral water

Strength of H₂O₂ is 15.18 g L^-1, then it is equal to

• 1 volume

• 10 volume

• 5 volume

• 7 volume

Assertion : Sulphur is oxidised by H₂O₂ in presence of Fe (III).

Reason : Fe (III) oxidises sulphur to sulphate.

• If both assertion and reason are true and reason is the correct explanation of assertion

• If both assertion and reason are true but reason is not the correct explanation of assertion

• If assertion is true but reason is false.

• If both assertion and reason are false.

46.

Which is not a true peroxide ?

• H₂O₂

• Caro's acid

• Marshall's acid

• Thiosulphuric acid

Assertion : Compressibility factor for hydrogen varies with pressure with positive slope at all pressure.

Reason : Even at low pressure, repulsive forces dominate for hydrogen gas.

• If both assertion and reason are true and reason is the correct explanation of assertion

• If both assertion and reason are true but reason is not the correct explanation of assertion

• If assertion is true but reason is false

• If both assertion and reason are false.

What is the product of the reaction of H₂O₂ with Cl₂ ?

• O₂ + HOCl

• HCl + O₂

• H₂O + HCl

• HCl + H₂

Assertion : Compressibility factor for hydrogen varies with pressure with positive slope at all pressures.

Reason : Even at low pressures, repulsive forces dominate hydrogen gas.

• If both assertion and reason are true and reason is the correct explanation of assertion.

• If both assertion and reason are true but reason is not the correct explanation of assertion.

• If assertion is true but reason is false.

• If both assertion and reason are false.

The reagent commonly used to determine hardness of water titrimetrically is

• oxalic acid

• disodium salt of EDTA

• sodium citrate

• sodium thiosulphate