1
JEE Main 2017 (Online) 8th April Morning Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
Which of the following is paramagnetic ?
A
NO+
B
CO
C
$$O_2^{2 - }$$
D
B2
2
JEE Main 2017 (Online) 8th April Morning Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
The pair of compounds having metals in their highest oxidation state is :
A
MnO2 and CrO2Cl2
B
[NiCl4]2$$-$$ and [CoCl4]2$$-$$
C
[Fe(CN)6]3$$-$$ and [Cu(CN)4]2$$-$$
D
[FeCl4]$$-$$ and Co2O3
3
JEE Main 2017 (Online) 8th April Morning Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
sp3d2 hybridization is not displayed by :
A
BrF5
B
SF6
C
[CrF6]3$$-$$
D
PF5
4
JEE Main 2017 (Online) 8th April Morning Slot
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language
Identify the pollutant gases largely responsible for the discoloured and lustreless nature of marble of the Taj Mahal.
A
O3 and CO2
B
CO2 and NO2
C
SO2 and NO2
D
SO2 and O3
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