Chemistry-Oxidation Number
NEET Chemistry Oxidation Number Assertion Reason Question
Type: Assertion Reason-assertion-Hard-Class 11
Assertion (A): In a molecule like Cr2O7^2-, the average oxidation number of chromium is +6.
Reason (R): The oxidation number of an element in a compound is determined by a set of rules that consider the electronegativity of the elements involved.
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 B
Detailed Explanation
While both the assertion and reason are true, the reason does not directly explain the assertion. The average oxidation number of chromium is calculated using rules for oxidation states, but not specifically due to electronegativity considerations.
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