Stoichiometry Mock Tests
26 questions available
Stoichiometry Mock Test 1
Questions:
26
नमूना प्रश्न
10 g of calcium carbonate (CaCO₃) is heated with 5 g of hydrochloric acid (HCl). The reaction is: CaCO₃ + 2HCl → CaCl₂ + H₂O + CO₂. Which reactant is the limiting reagent? (Molar masses: CaCO₃ = 100 g/mol, HCl = 36.5 g/mol)
In acidic medium, KMnO₄ oxidises Fe²⁺ to Fe³⁺. If 20 mL of 0.1 M KMnO₄ reacts completely with Fe²⁺ solution, what mass of Fe²⁺ (as FeSO₄·7H₂O, molar mass = 278 g/mol) was present?
In a reaction, 3.2 g of methane (CH₄) reacts with excess oxygen. What is the volume of CO₂ produced at STP? (Atomic masses: C = 12, H = 1)
How many electrons weigh 1 kg? (Mass of electron = 9.1 × 10⁻³¹ kg)
The number of atoms in 12 g of carbon-12 is:
What is the molarity of a solution prepared by dissolving 4 g of NaOH in enough water to make 500 mL of solution? (Na = 23, O = 16, H = 1)___SEQ___25
In the reaction MnO4- + 5Fe2+ + 8H+ -> Mn2+ + 5Fe3+ + 4H2O, what volume of 0.1 M KMnO4 is required to completely react with 25 mL of 0.5 M FeSO4 solution?
In the reaction 2FeCl₂ + Cl₂ → 2FeCl₃, which species is oxidised and what is the change in oxidation state of iron?
टिप्पणियाँ
अभी तक कोई टिप्पणी नहीं। अपने विचार साझा करने वाले पहले व्यक्ति बनें!