1
IIT-JEE 1985
MCQ (Single Correct Answer)
+1
-0.25
The molecule having one unpaired electron is
A
NO
B
CO
C
CN-
D
O2
2
IIT-JEE 1984
MCQ (Single Correct Answer)
+1
-0.25
On hybridization of one s and one p orbitals we get:
A
two mutually perpendicular orbitals
B
two orbitals at 180o
C
four orbitals directed tetrahedrally
D
three orbitals in a plane
3
IIT-JEE 1983
MCQ (Single Correct Answer)
+1
-0.25
Carbon tetrachloride has no net dipole moment because of
A
its planar structure
B
its regular tetrahedral structure
C
similar sizes of carbon and chlorine
D
similar electron affinities of carbon and chlorine
4
IIT-JEE 1983
MCQ (Single Correct Answer)
+1
-0.25
The types of bonds present in CuSO4.5H2O are only
A
electrovalent and covalent
B
electrovalent and coordinate covalent
C
electrovalent, covalent and coordinate covalent
D
covalent and coordinate covalent
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