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
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 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
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. 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
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 […]
H₂S acts only as a reducing agent while SO₂, can act both as a reducing and oxidizing agent because
Options
(a) S in H₂S has -2 oxidation state (b) S in SO₂ has […]
K₃Fe(CN)₆ + e⁻ → K₄Fe(CN)₆ is known as
Options
(a) ionization (b) oxidation (c) reduction (d) none of these
Correct Answer:
reduction
Explanation:
No explanation available. Be the first to write the explanation […]
Oxidation number of iron in [Fe(CN)₆]⁴⁻ is
Options
(a) 2 (b) 3 (c) -3 (d) -4
Correct Answer:
2
Explanation:
No explanation available. Be the first to write the explanation for this question […]
Oxidation numbers of carbon in CH₂Cl₂,CO₂ and CO₃²⁻ are respectively
Options
(a) 0,4,4 (b) 2,2,-2 (c) 4,4,4 (d) -4,4,2
Correct Answer:
0,4,4
Explanation:
No explanation available. Be the first to write the explanation […]
2017 Copyright Doctor Dreams Training Academy