CBSE
Multiple Choice QuestionsWhich is not a true peroxide ?
H2O2
Caro's acid
Marshall's acid
Thiosulphuric acid
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.
The reagent commonly used to determine hardness of water titrimetrically is
oxalic acid
disodium salt of EDTA
sodium citrate
sodium thiosulphate
Strength of H2O2 is 15.18 g L-1, then it is equal to
1 volume
10 volume
5 volume
7 volume
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.
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.
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.
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.
Which of the following is used as moderator :
Hard water
Heavy water
Non-ionised water
Mineral water
What is the product of the reaction of H2O2 with Cl2 ?
O2 + HOCl
HCl + O2
H2O + HCl
HCl + H2
