1
AIPMT 2015
MCQ (Single Correct Answer)
+4
-1
Which of the statements given below is incorrect?
A
O3 molecule is bent.
B
ONF is isoelectronic with O2N
C
OF2 is an oxides of fluorine.
D
Cl2O7 is an anhydride of perchloric acid.
2
AIPMT 2015
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
In the extraction of copper from its sulphide ore. the metal is finally obtained by the reduction of cuprous oxide with
A
carbon monoxide
B
copper (I) sulphide
C
sulphur dioxide
D
iron (II) sulphide.
3
AIPMT 2015
MCQ (Single Correct Answer)
+4
-1
Assuming complete ionisation, same moles of which of the following compounds will require the least amount of acidified KMnO4 for complete oxidation?
A
FeSO3
B
FeC2O4
C
Fe(NO2)2
D
FeSO4
4
AIPMT 2015
MCQ (Single Correct Answer)
+4
-1
Gadolinium belongs to 4f series. Its atomic number is 64. Which of the following is the correct electronic configuration of gadolinium?
A
[Xe]4f95s1
B
[Xe]4f75d16s2
C
[Xe]4f65d26s2
D
[Xe]4f86d2
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