1
JEE Main 2018 (Online) 15th April Evening Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
In KO2, the nature of oxygen species and the oxydation state of oxygen atom are, respectively :
A
Oxide and $$-$$ 2
B
Superoxide and $$-$$ 1/2
C
Peroxide and $$-$$ 1/2
D
Superoxide and $$-$$ 1
2
JEE Main 2018 (Online) 15th April Evening Slot
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language
Lithium aluminium hydride reacts with silicon tetrachloride to form :
A
LiCl,   AlH3  and   SiH4
B
LiCl,  AlCl3  and  SiH4
C
LiH,   AlCl3  and  SiCl2
D
LiH,  AlH3   and   SiH4
3
JEE Main 2018 (Online) 15th April Evening Slot
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language
In XeO3F2, the number of bond pair(s), $$\pi $$-bond(s) and lone pair(s) on Xe atom respectively are :
A
5, 2, 0
B
4, 2, 2
C
5, 3, 0
D
4, 4, 0
4
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
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