111.

H₂O₂ can be obtained when following reacts with H₂SO₄ except with

• BaO₂

• PbO₂

• Na₂O₂

• SrO₂

Which of the following reactions increases the production of dihydrogen from synthesis gas?

• ${\text{CH}}_{4_{\left(g\right)}}+H_2{O}_{\left(g\right) }\underset{Ni}{\overset{1270K}{\to }}C{O}_{\left(g\right)}+H_{2_{\left(g\right)}}$

• ${\text{C}}_{\left(s\right)}+H_2{O}_{\left(g\right)}\underset{}{\overset{1270 K}{\to }} C{O}_{\left(g\right)}+{H_2}_{\left(g\right)}$

• ${\text{CO}}_{\left(g\right)}+H_2{O}_{\left(g\right)}\underset{Catalyst}{\overset{637K}{\to }}C{O}_{2_{\left(g\right)}}+H_{2_{\left(g\right)}}$

• ${\text{C}}_2{H}_6+2H_{2}O \underset{Ni}{\overset{1270K}{\to }}2CO+5H_2$

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.

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