1

IIT-JEE 1982

MCQ (Single Correct Answer)
The ion that is isoelectronic with CO is
A
CN-
B
NO2
C
SO2
D
ClO2
2

IIT-JEE 1981

MCQ (Single Correct Answer)
If a molecule MX3 has zero dipole moment, the sigma bonding orbitals used by M (atomic number < 21) are
A
pure p
B
sp hybrid
C
sp2 hybrid
D
sp3 hybrid
3

IIT-JEE 1980

MCQ (Single Correct Answer)
Which of the following is soluble in water?
A
CS2
B
C2H5OH
C
CCl4
D
CHCl3
4

IIT-JEE 1980

MCQ (Single Correct Answer)
The total number of electrons that take part in forming the bond in N2 is
A
2
B
4
C
6
D
10

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