JEE Mains · Chemistry · STD 12 - 4. d and f- block elements
The correct order of following \(3\, d\) metal oxides, according to their oxidation numbers is : \((a)\) \({CrO}_{3}\) \((b)\) \({Fe}_{2} {O}_{3}\) \((c)\) \({MnO}_{2}\) \((d)\) \({V}_{2} {O}_{5}\) \((e)\) \({Cu}_{2} {O}\)
- A \((a)>(d)>(c)>(b)>(e)\)
- B \((\mathrm{d})>(\mathrm{a})>(\mathrm{b})>(\mathrm{c})>(\mathrm{e})\)
- C \((a)>(c)>(d)>(b)>(e)\)
- D \((c)>(a)>(d)>(e)>(b)\)
Answer & Solution
Correct Answer
(A) \((a)>(d)>(c)>(b)>(e)\)
Step-by-step Solution
Detailed explanation
\((a)\) \(\stackrel{+6}{{C}} {rO}_{3}\) \((b)\) \(\stackrel{+3} {Fe}_{2} {O}_{3}\) \((c)\) \(\stackrel{+4} {MnO}_{2}\) \((d)\) \(\stackrel{+5} {V}_{2} {O}_{5}\) \((e)\) \(\stackrel{+1} {Cu}_{2} {O}\) So order of oxidation state \(a>d>c>b>e\)
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