The correct order of following

Question:

The correct order of following $3 \mathrm{~d}$ metal oxides, according to their oxidation numbers is :

(a) $\mathrm{CrO}_{3}$

(b) $\mathrm{Fe}_{2} \mathrm{O}_{3}$

(c) $\mathrm{MnO}_{2}$

(d) $\mathrm{V}_{2} \mathrm{O}_{5}$

(e) $\mathrm{Cu}_{2} \mathrm{O}$

  1. $(\mathrm{d})>(\mathrm{a})>(\mathrm{b})>(\mathrm{c})>(\mathrm{e})$

  2. $(\mathrm{a})>(\mathrm{c})>(\mathrm{d})>(\mathrm{b})>(\mathrm{e})$

  3. $(\mathrm{a})>(\mathrm{d})>(\mathrm{c})>(\mathrm{b})>(\mathrm{e})$

  4. $(\mathrm{c})>(\mathrm{a})>(\mathrm{d})>(\mathrm{e})>(\mathrm{b})$


Correct Option: , 3

Solution:

So order of oxidation state $\mathrm{a}>\mathrm{d}>\mathrm{c}>\mathrm{b}>\mathrm{e}$

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