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1
AIEEE 2005
MCQ (Single Correct Answer)
+4
-1
Of the following sets which one does NOT contain isoelectronic species?
A
$$BO_3^{3 - }$$, $$CO_3^{2 - }$$, $$NO_3^{- }$$
B
$$SO_3^{2 - }$$, $$CO_3^{2 - }$$, $$NO_3^{-}$$
C
$$CN^{- }$$, $$N_2$$, $$C_2^{2 - }$$
D
$$PO_4^{3 - }$$, $$SO_4^{2 - }$$, $$ClO_4^{ - }$$
2
AIEEE 2004
MCQ (Single Correct Answer)
+4
-1
Which of the following sets of quantum numbers is correct for an electron in 4f orbital?
A
n = 4, l = 3, m = +1, s = + 1/2
B
n = 4, l = 4, m = -4, s = - 1/2
C
n = 4, l = 3, m = +4, s = + 1/2
D
n = 3, l = 2, m = -2, s = + 1/2
3
AIEEE 2004
MCQ (Single Correct Answer)
+4
-1
Consider the ground state of Cr atom (Z = 24). The number of electrons with the azimuthal quantum numbers, l = 1 and 2 are respectively
A
16 and 4
B
12 and 5
C
12 and 4
D
16 and 5
4
AIEEE 2004
MCQ (Single Correct Answer)
+4
-1
The wavelength of the radiation emitted when in a hydrogen atom electron falls from infinity to stationary state 1, would be (Rydberg constant = 1.097 $$\times$$ 107 m-1)
A
406 nm
B
192 nm
C
91 nm
D
9.1 $$\times$$ 10-8 nm
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