Redox Reactions & Electrochemistry-Oxidation Number (KVPY Stream SB-SX (Class 12 & 1st Year B.Sc.) Chemistry): Questions 1 - 4 of 4

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Question number: 1

» Redox Reactions & Electrochemistry » Oxidation Number

Appeared in Year: 2014

MCQ▾

Question

The metal with highest oxidation state present in K2CrO4 , NbCl5 and MnO2 is

Choices

Choice (4) Response

a.

Mn

b.

Nb

c.

K

d.

Cr

Question number: 2

» Redox Reactions & Electrochemistry » Oxidation Number

Appeared in Year: 2015

MCQ▾

Question

In alkaline medium, the reaction of hydrogen peroxide with potassium permanganate produces a compound in which the dating state of Mn is-

Choices

Choice (4) Response

a.

+4

b.

+2

c.

+3

d.

0

Question number: 3

» Redox Reactions & Electrochemistry » Oxidation Number

MCQ▾

Question

The pair of compounds having metals in their highest oxidation states….

Choices

Choice (4) Response

a.

MnO2,FeCl3

b.

MnO4,CrO2Cl2

c.

[Fe(CN)6]3,[CO(CN)6]3

d.

[NiCl4]2,[COCl4]

Question number: 4

» Redox Reactions & Electrochemistry » Oxidation Number

MCQ▾

Question

Oxidation number of carbon in carbon suboxide is:

Choices

Choice (4) Response

a.

+23

b.

+43

c.

23

d.

43

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