Questions

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 […]

The oxidation states of Mn in MnSO₄,MnO₂,K₂MnO₄ and KMnO₄ are respectively

Options

(a) 1,2,4,4 (b) 2,4,6,7 (c) 1,2,4,6 (d) 2,4,7,6

Correct Answer:

2,4,6,7

Explanation:

No explanation available. Be the first to write the […]