In the following change,KMnO₄ → MnO₂, the oxidation state of Mn changes as
In the following change,KMnO₄ → MnO₂, the oxidation state of Mn changes as
Options
(a) 7 → 4 (b) 5 → 2 (c) 7 → 5 (d) 3 → 7
Correct Answer:
7 […]
Hydrogen and Redox Reactions
If HNO₃ changes into N₂O, the oxidation number is changed by
If HNO₃ changes into N₂O, the oxidation number is changed by
Options
(a) 0 (b) 6 (c) 2 (d) 4
Correct Answer:
4
Explanation:
No explanation available. Be the first to write the […]
Equivalent weight of KMnO₄ in basic medium is (mol.wt. of KMnO₄ = 158)
Equivalent weight of KMnO₄ in basic medium is (mol.wt. of KMnO₄ = 158)
Options
(a) 31.5 (b) 52.67 (c) 79 (d) 158
Correct Answer:
52.67
Explanation:
MnO₄⁻ + 2H₂O + 3e⁻ → MnO₂ […]
The oxidation state of halogen atom is ‘+3’ in
The oxidation state of halogen atom is ‘+3’ in
Options
(a) ClO₂ (b) Cl₂O₃ (c) Cl₂O₆ (d) I₂O₅
Correct Answer:
Cl₂O₃
Explanation:
No explanation available. Be the first to write the explanation for […]
The reaction : Ag²⁺(aq) + Ag(s) ⇌ 2Ag⁺(aq) is an example of
The reaction : Ag²⁺(aq) + Ag(s) ⇌ 2Ag⁺(aq) is an example of
Options
(a) reduction (b) oxidation (c) disproportionation (d) none of these
Correct Answer:
disproportionation
Explanation:
No explanation available. Be the first […]
Which of the following can act as an oxidising as well as reducing agent
Which of the following can act as an oxidising as well as reducing agent
Options
(a) Chlorine (b) Air (c) Ozone (d) SO₂
Correct Answer:
SO₂
Explanation:
No explanation available. Be the first […]
Among the following, identify the compound which cannot act as both oxidising
Among the following, identify the compound which cannot act as both oxidising and reducing agents
Options
(a) H₂O₂ (b) HNO₂ (c) SO₂ (d) Cl₂
Correct Answer:
Cl₂
Explanation:
No explanation available. Be the […]
In Cr₂O₇²⁻ the oxidation numbers are
In Cr₂O₇²⁻ the oxidation numbers are
Options
(a) O = -2, Cr = +6 (b) O = +2, Cr = -6 (c) O = -7, Cr = +6 (d) none of these
Correct […]
KMnO₄ acts as an oxidising agent in the netural medium and gets reduced to MnO₂.
KMnO₄ acts as an oxidising agent in the netural medium and gets reduced to MnO₂. The equivalent weight of KMnO₄ in neutral medium will be
Options
(a) mol wt. /2 (b) mol wt. […]
The oxidation state of chlorine in HClO₄ is
The oxidation state of chlorine in HClO₄ is
Options
(a) -1 (b) 3 (c) 5 (d) 7
Correct Answer:
7
Explanation:
No explanation available. Be the first to write the explanation for this […]