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Which of the following has the highest equivalent weight?
H₂SO₄ (Sulfuric acid)
NaOH (Sodium hydroxide)
KMnO₄ (Potassium permanganate)
CaCO₃ (Calcium carbonate)
Which of the following oxides exhibits the strongest oxidizing power in acidic medium?
Which property of hydrogen is responsible for its ability to act as both an oxidizing and reducing agent?
Low ionization energy
Small size
Intermediate electronegativity
High electron affinity
Potassium permanganate (KMnO) acts as a strong oxidizing agent in acidic medium. What is the oxidation state of manganese in the product formed when KMnO reacts with ferrous sulfate in acidic medium?
+7
+4
+2
+6
A mixture of and liberates iodine. In this reaction, acts as:
An oxidizing agent
A reducing agent
A catalyst
An acid
Hydrogen peroxide acts as an oxidizing agent in which of the following reactions?
Reaction where H₂O₂ is oxidized to O₂
Reaction where H₂O₂ is reduced to H₂O or O²⁻
Reaction where H₂O₂ is converted to another peroxide
Reaction where H₂O₂ acts as a catalyst without changing its oxidation state
H2O2 acts as a reducing agent in which of the following reactions?
Reaction with ferrous sulphate
Reaction with acidified KMnO4
Reaction with lead sulphide
Decomposition to water and oxygen
The disproportionation of chlorine in alkaline medium yields products X and Y. If the oxidation number of chlorine in X is +5, what is the oxidation number of chlorine in Y?
+1
+3
+7
-1
Which of the following statements is INCORRECT regarding the oxidation of iodide ions () by permanganate ions () in acidic medium?
The reaction produces iodine and manganese ions.
The reaction does not require an acidic medium.
The reaction is a redox reaction.
The stoichiometry of the reaction is balanced.
