1
AIPMT 2002
MCQ (Single Correct Answer)
+4
-1
In hydrogen atom, energy of first excited state is $$-$$ 3.4 eV. Then find out K.E. of same orbit of hydrogen atom
A
+3.4 eV
B
+6.8 eV
C
$$-$$ 13.6 eV
D
+13.6 eV
2
AIPMT 2001
MCQ (Single Correct Answer)
+4
-1
Main axis of a diatomic molecule is z, molecular orbital px and py overlap to from which of the following orbitals.
A
$$\pi $$ molecular orbital
B
$$\sigma $$ molecular orbital
C
$$\delta $$ molecular orbital
D
No bond will form
3
AIPMT 2001
MCQ (Single Correct Answer)
+4
-1
The following quantum numbers are possible for how many orbitals :

n = 3, $$l$$ = 2, m = +2 ?
A
1
B
2
C
3
D
4
4
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
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