1
AIPMT 2000
MCQ (Single Correct Answer)
+4
-1
Oxidation numbers of A, B, C are + 2, +5 and $$-$$2 respectively. Possible formula of compound is
A
A2(BC2)2
B
A3(BC4)2
C
A2(BC3)2
D
A3(B2C)2
2
AIPMT 2000
MCQ (Single Correct Answer)
+4
-1
Isoelectronic species are
A
CO, CN$$-$$, NO+, C$${_2^{2 - }}$$
B
CO$$-$$, CN, NO,
C
$$C_2^ - $$
D
CO, CN, NO, C2
3
AIPMT 2000
MCQ (Single Correct Answer)
+4
-1
Right order of dissociation energy N2 and N2+ is
A
N2 > N2+
B
N2 = N2+
C
N2+ > N2
D
none
4
AIPMT 2000
MCQ (Single Correct Answer)
+4
-1
Which species does not exhibit paramagnetism?
A
N2+
B
O2$$-$$
C
CO
D
NO