Chemistry-Oxidation Number
NEET Chemistry Oxidation Number Assertion Reason Question
Type: Assertion Reason-assertion-Medium-Class 11
Assertion (A): In a neutral compound, the sum of oxidation numbers of all atoms must be zero.
Reason (R): In a polyatomic ion, the sum of oxidation numbers of all atoms must equal the charge on the ion.
A
Both A and R are true and R is the correct explanation of A.
B
Both A and R are true but R is not the correct explanation of A.
C
A is true but R is false.
D
A is false but R is true.
Correct Answer
Option A
Detailed Explanation
Both statements are correct. The assertion and the reason reflect the rule that the algebraic sum of oxidation numbers is zero for a neutral compound and equals the charge for a polyatomic ion, as per NCERT context.
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