1
AIPMT 2014
MCQ (Single Correct Answer)
+4
-1
In acidic medium, H2O2 changes Cr2O72- to CrO5 which has two
($$-$$O$$-$$O$$-$$) bonds. Oxidation state of Cr in CrO5 is
($$-$$O$$-$$O$$-$$) bonds. Oxidation state of Cr in CrO5 is
2
AIPMT 2012 Prelims
MCQ (Single Correct Answer)
+4
-1
When Cl2 gas reacts with hot and concentrated sodium hydroxide solution, the oxidation number of chlorine changes from
3
AIPMT 2012 Prelims
MCQ (Single Correct Answer)
+4
-1
A mixture of potassium chlorate, oxalic acid and sulphuric acid is heated. During the reaction which element undergoes maximum change in the oxidation number?
4
AIPMT 2009
MCQ (Single Correct Answer)
+4
-1
Oxidation numbers of P in PO$$_4^{3 - }$$, of S in SO$$_4^{2 - }$$ and that of Cr in Cr2O$$_7^{2 - }$$ are respectively
Questions Asked from Redox Reactions (MCQ (Single Correct Answer))
Number in Brackets after Paper Indicates No. of Questions
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