1
IIT-JEE 2000 Screening
MCQ (Single Correct Answer)
+2
-0.5
Amongst the following identify the species with an atom in +6 oxidation state
A
$$MnO_4^ - $$
B
$$Cr(CN)_6^{3 - }$$
C
$$NiF_6^{2 - }$$
D
$$Cr{O_2}C{l_2}$$
2
IIT-JEE 2000 Screening
MCQ (Single Correct Answer)
+1
-0.25
The number of nodal planes in a px orbital is
A
one
B
two
C
three
D
zero
3
IIT-JEE 2000 Screening
MCQ (Single Correct Answer)
+1
-0.25
The electronic configuration of an element is 1s2, 2s2 2p6, 3s2 3p6 3d5, 4s1 This represents its
A
excited state
B
ground state
C
cationic form
D
anionic form
4
IIT-JEE 2000 Screening
MCQ (Single Correct Answer)
+1
-0.25
The correct order of radii is
A
N < Be < B
B
F- < O2- < N3-
C
Na < Li < K
D
Fe3+ < Fe2+ < Fe4+
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