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.

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

Assertion : Increasing pressure on pure water decreases its freezing point.

Reason : Density of water is minimum at 273 K.

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

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

• If assertion is true but reason is false.

• If both assertion and reason are false.

Assertion : The micelle formed by sodium stearate in water has - COO^- groups at the surface.

Reason : Surface tension of water is reduced by the addition of stearate.

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

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

• If assertion is true but reason is false.

• If both assertion and reason are false.

When H₂O₂ is shaken with an acidified solution of K₂Cr₂O₇ in the presence of ether, the ethereal layer turns blue due to the formation of:

• Cr₂O₃

• CrO₄^2-

• Cr₂(SO₄)₃

• CrO₅