1
NEET 2016 Phase 1
MCQ (Single Correct Answer)
+4
-1
Change Language
Which one of the following statements is correct when SO2 is passed through acidified K2Cr2O7 solution?
A
SO2 is reduced.
B
Green Cr2(SO4)3 is formed.
C
The solution turns blue.
D
The solution is decolourised.
2
NEET 2016 Phase 1
MCQ (Single Correct Answer)
+4
-1
Change Language
The electronic configuration of Eu (Atomic No. 63), Gd (Atomic No. 64) and Tb (Atomic No.65) are
A
[Xe]4f65d16s2,
[Xe]4f75d16s2 and [Xe]4f85d16s2
B
[Xe]4f7 6s2, [Xe]4f7 5d1 6s2 and [Xe]4f9 6s2
C
[Xe]4f7 6s2, [Xe]4f8 6s2 and [Xe]4f8 5d1 6s2
D
[Xe]4f6 5d1 6s2, [Xe]4f7 5d1 6s2 and [Xe]4f9 6s2
3
AIPMT 2015
MCQ (Single Correct Answer)
+4
-1
Change Language
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
Change Language
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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