KCET SERIES Chemistry
Oxidation Number
6 previous year questions.
Volume: 6 Ques
Yield: Medium
High-Yield Trend
1
2026 1
2025 1
2023 1
2020 1
2019 1
2009 Chapter Questions 6 MCQs
01
PYQ 2009
easy
chemistry ID: kcet-200
The oxidation state of in the brown ring complex : is
1
2
2
1
3
3
4
0
02
PYQ 2019
medium
chemistry ID: kcet-201
Oxidation state of copper is +1 in
1
Azurite
2
Chalcopyrite
3
Malachite
4
Cuprite
03
PYQ 2020
easy
chemistry ID: kcet-202
The oxidation number of nitrogen atoms in are
1
+5, +5
2
-3, +5
3
+3, -5
4
-3, -3
04
PYQ 2023
medium
chemistry ID: kcet-202
What is the oxidation number of S in H2S2O8 ?
1
+5
2
+4
3
+7
4
+6
05
PYQ 2025
medium
chemistry ID: kcet-202
The group reagent NH Cl (s) and aqueous NH , will precipitate which of the following ion
1
Al
2
Ba
3
Ca
4
NH
06
PYQ 2026
medium
chemistry ID: kcet-202
Given below are two statements.
Statement I : In H O , each oxygen atom is assigned an oxidation number of -1, In RbO , each oxygen atom is assigned an oxidation number of - .
Statement II : Representation of HAuCl and MnO in stock notation is HAu(III)Cl and Mn(II)O , respectively.
Examine the above statements and choose the correct answer.
Statement I : In H O , each oxygen atom is assigned an oxidation number of -1, In RbO , each oxygen atom is assigned an oxidation number of - .
Statement II : Representation of HAuCl and MnO in stock notation is HAu(III)Cl and Mn(II)O , respectively.
Examine the above statements and choose the correct answer.
1
Both Statement I and Statement II are correct
2
Both Statement I and Statement II are incorrect
3
Statement I is correct but Statement II is incorrect
4
Statement I is incorrect but Statement II is correct
About Oxidation Number - KCET
Oxidation Number is a vital chapter for KCET aspirants. Mastering the concepts covered in this chapter is essential for securing a top rank.
By rigorously practicing the previous year questions associated with this chapter, you can identify high-yield topics, understand the examiner's perspective, and boost your confidence during the actual exam.
Frequently Asked Questions
Why focus on Oxidation Number PYQs?
Analyzing PYQs for this specific chapter reveals the most frequently tested concepts and the typical complexity of questions, allowing you to tailor your study plan efficiently.
How to best use this analysis?
Review the topic breakdown to see which sub-topics within Oxidation Number carry the most weight. Then, tackle the questions iteratively to solidify your understanding.