Chemistry · 2021
JEE Main · 25 July 2021, Shift 1 · Q38
The correct order of following 3d 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
The correct order of following 3d metal oxides, according to their oxidation numbers is :
(a)
$\displaystyle \mathrm{CrO}_3$
(b)
$\displaystyle \mathrm{Fe}_2 \mathrm{O}_3$
(c)
$\displaystyle \mathrm{MnO}_2$
(d)
$\displaystyle \mathrm{V}_2 \mathrm{O}_5$
(e)
$\displaystyle \mathrm{Cu}_2 \mathrm{O}$
Official answer
(2)
$\displaystyle \text { (a) }>\text { (d) }>\text { (c) }>\text { (b) }>\text { (e) }$
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JEE Main 2021 Chemistry question, with the answer from NTA’s final answer key. Where our answers come from.