1
JEE Main 2018 (Online) 15th April Morning Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
In graphite and diamond, the percentage of p-characters of the hybrid orbitals in hybridisation are respectively :
A
33 and 25
B
33 and 75
C
50 and 75
D
67 and 75
2
JEE Main 2018 (Online) 15th April Morning Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
The correct combination is :
A
[Ni(CN)4]2- $$-$$ tetrahedral ;

[Ni(CO)4] $$-$$ paramagnetic
B
[Ni(Cl)4]2- $$-$$ paramagnetic ;

[Ni(CO)4] $$-$$ tetrahedral
C
[Ni(Cl)4]2- $$-$$ square-planar ;

[Ni(CN)4] 2-$$-$$ paramagnetic
D
[Ni(Cl)4]2- $$-$$ diamagnetic ;

[Ni(CO)4] $$-$$square-planar
3
JEE Main 2018 (Online) 15th April Morning Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
Identify the pair in which the geometry of the species is $$T$$-shape and square - pyraidal, respectively :
A
ClF3 and $$I{O_4}^ - $$
B
ICl2- and ICl5
C
XeOF2 and XeOF4
D
IO3- and IO2F2-
4
JEE Main 2018 (Online) 15th April Morning Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
The decreasing order of bond angles in BF3, NH3, PF3 and I3- is :
A
I3- > NH3 > PF3 > BF3
B
I3- > BF3 > NH3 > PF3
C
BF3 > I3- > PF3 > NH3
D
BF3 > NH3 > PF3 > I3-
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