1
JEE Main 2022 (Online) 24th June Morning Shift
Numerical
+4
-1
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The difference in oxidation state of chromium in chromate and dichromate salts is ___________.

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2
JEE Main 2021 (Online) 26th February Evening Shift
Numerical
+4
-1
In mildly alkaline medium, thiosulphate ion is oxidized by $$MnO_4^ - $$ to "A". The oxidation state of sulphur in "A" is __________.
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3
JEE Main 2021 (Online) 26th February Morning Shift
Numerical
+4
-1
Dichromate ion is treated with base, the oxidation number of Cr in the product formed is ___________.
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