NEET Chemistry Oxidation Number MCQ Question
Which of the following statements about oxidation numbers is correct?
The oxidation state of an element can be expressed as a fraction in certain compounds.
The oxidation number of a metal in a compound is always a whole number.
Oxidation states can only be determined for transition metals.
The oxidation number indicates whether a species is in oxidized or reduced form.
Correct Answer
Detailed Explanation
Statement A is correct as fractional oxidation numbers exist in compounds like C3O2 and Na2S4O6. Statement B is incorrect because fractional oxidation states can occur. Statement C is misleading; oxidation states apply to all elements, not just transition metals. Statement D is true but does not fully capture the concept of fractional oxidation states discussed in the NCERT context.
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