1
JEE Main 2016 (Offline)
MCQ (Single Correct Answer)
+4
-1
Change Language
The pair in which phosphorous atoms have a formal oxidation state of +3 is:
A
Orthophosphorous and pyrophosphorous acids
B
Pyrophosphorous and hypophosphoric acids
C
Orthophosphorus and hypophosphoric acids
D
Pyrophosphorous and pyrophosphoric acids
2
JEE Main 2016 (Offline)
MCQ (Single Correct Answer)
+4
-1
Change Language
The reaction of zinc with dilute and concentrated nitric acid, respectively, produces:
A
NO2 and NO
B
NO and N2O
C
NO2 and N2O
D
N2O and NO2
3
JEE Main 2015 (Offline)
MCQ (Single Correct Answer)
+4
-1
Change Language
Which among the following is the most reactive?
A
Br2
B
I2
C
ICl
D
Cl2
4
JEE Main 2015 (Offline)
MCQ (Single Correct Answer)
+4
-1
Change Language
Which one has the highest boiling point?
A
Ne
B
Kr
C
Xe
D
He
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