In the conversion of Br₂ to BrO₃⁻, the oxidation number of Br changes from
In the conversion of Br₂ to BrO₃⁻, the oxidation number of Br changes from
Options
(a) zero to 5 (b) 1 to 5 (c) zero to -3 (d) 2 to 5
Correct Answer: […]
Questions
H₂O₂ reduces MnO₄⁻ ion to
H₂O₂ reduces MnO₄⁻ ion to
Options
(a) Mn³⁺ (b) Mn²⁺ (c) Mn⁻ (d) Mn⁺
Correct Answer:
Mn²⁺
Explanation:
2MnO₄⁻ + 5H₂O₂ + 6H⁺ → 2Mn²⁺ + 8H₂O + 5O₂. Thus in this reaction, H₂O₂ […]
In which of the following compounds, carbon exhibits a valency of 4
In which of the following compounds, carbon exhibits a valency of 4 but oxidation state -2
Options
(a) CH₃Cl (b) CHCl₃ (c) CH₂Cl₂ (d) HCHO
Correct Answer:
CH₃Cl
Explanation:
No explanation available. Be […]
During a redox titration involving a solution containing Fe²⁺ ions against MnO₄⁻
During a redox titration involving a solution containing Fe²⁺ ions against MnO₄⁻ in the presence of excess of H⁺ ions, the number of electrons that get transferred is
Options
(a) 6 (b) 5 […]
The oxidation number of xenon in XeOF₂ is
The oxidation number of xenon in XeOF₂ is
Options
(a) zero (b) 2 (c) 4 (d) 3
Correct Answer:
4
Explanation:
No explanation available. Be the first to write the explanation for this […]
The strongest reducing agent among the following is
The strongest reducing agent among the following is
Options
(a) F⁻ (b) Cl⁻ (c) Br⁻ (d) I⁻
Correct Answer:
I⁻
Explanation:
No explanation available. Be the first to write the explanation for this […]
Which of the following is the strongest oxidising agent
Which of the following is the strongest oxidising agent
Options
(a) HOCl (b) HClO₂ (c) HClO₃ (d) HClO₄
Correct Answer:
HClO₄
Explanation:
No explanation available. Be the first to write the explanation for […]
Volume of 0.1 M K₂Cr₂O₇ required to oxidize 35 mL of 0.5 M FeSO₄ solution is
Volume of 0.1 M K₂Cr₂O₇ required to oxidize 35 mL of 0.5 M FeSO₄ solution is
Options
(a) 29.2 mL (b) 17.5 mL (c) 175 mL (d) 145 mL
Correct Answer:
29.2 mL
Of the following reaction, only one is a redox reaction.Identify this reaction
Of the following reaction, only one is a redox reaction.Identify this reaction
Options
(a) Ca(OH)₂ + 2HCl → CaCl₂ + 2H₂O (b) 2S₂O₇²⁻ + 2H₂O → 2SO₄²⁻ + 4H⁺ (c) BaCl₂ + MgSO₄ […]
Which of the following is a disproportionation reaction
Which of the following is a disproportionation reaction
Options
(a) 2Cu⁺ → Cu²⁺ + Cu (b) Cu → Cu⁺ (c) Cl₂ → 2Cl⁻ (d) 2Mg + O₂ → 2MgO
Correct Answer:
2Cu⁺ → […]