Questions

The oxidation number of sulphur is -1 in

The oxidation number of sulphur is -1 in Options (a) FeS (b) FeS₂ (c) 2NaO - S = O₂ (d)…

In which of the following compounds manganese has oxidation number equal

In which of the following compounds manganese has oxidation number equal to that of iodine in KIO₄ Options (a) Potassium…

A 2.5 mol sample of N₂H₄ loses 25 mol of electrons in being converted

A 2.5 mol sample of N₂H₄ loses 25 mol of electrons in being converted to a new compound X, Assuming…

In acidic medium, the equivalent weight of KMnO₄ is

In acidic medium, the equivalent weight of KMnO₄ is Options (a) M/6 (b) M/5 (c) M/4 (d) M/3 Correct Answer:…

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…

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…

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…

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:…

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)…

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)…