Chemistry-Oxidation Number
NEET Chemistry Oxidation Number MCQ Question
Type: MCQ-conceptual-Easy-Class 11
Which of the following statements regarding oxidation numbers is correct?
A
The oxidation number of all atoms in a neutral compound must sum to zero.
B
Nonmetals can only have positive oxidation numbers.
C
The oxidation number of oxygen is always +2 in compounds.
D
The algebraic sum of oxidation numbers in a polyatomic ion must equal zero.
Correct Answer
Option A
Detailed Explanation
According to the NCERT context, the oxidation number of all the atoms in a compound must sum to zero, while the algebraic sum of oxidation numbers in a polyatomic ion must equal the charge on the ion, making option A the correct statement.
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