1
JEE Main 2019 (Online) 10th January Evening Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
In the reaction of oxalate with permanganate in acidic medium, the number of electrons involved in producing one molecule of CO2 is :
A
10
B
2
C
1
D
5
2
JEE Main 2017 (Offline)
MCQ (Single Correct Answer)
+4
-1
Change Language
Which of the following reactions is an example of a redox reaction?
A
$$Xe{F_6}$$ + H2O $$\to$$ $$XeO{F_4}$$ + 2HF
B
$$Xe{F_6}$$ + 2H2O $$\to$$ $$XeO_2{F_2}$$ + 4HF
C
$$Xe{F_4}$$ + O2F2 $$\to$$ $$Xe{F_6}$$ + O2
D
$$Xe{F_2}$$ + PF5 $$\to$$ $${\left[ {XeF} \right]^ + }PF_6^ - $$
3
JEE Main 2016 (Online) 10th April Morning Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
The volume of 0.1N dibasic acid sufficient to neutralize 1 g of a base that furnishes 0.04 mole of OH in aqueous solution is :
A
200 mL
B
400 mL
C
600 mL
D
800 mL
4
JEE Main 2014 (Offline)
MCQ (Single Correct Answer)
+4
-1
In which of the following reactions H2O2 acts as a reducing agent?
1. H2O2 + 2H+ + 2e- $$\to$$ 2H2O
2. H2O2 - 2e- $$\to$$ O2 + 2H+
3. H2O2 + 2e- $$\to$$ 2OH-
4. H2O2 + 2OH- - 2e- $$\to$$ O2 + 2H2O
A
1, 2
B
3, 4
C
1, 3
D
2, 4
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