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1
NEET 2017
MCQ (Single Correct Answer)
+4
-1
Change Language
Name the gas that can readily decolourise acidified KMnO4 solution.
A
SO2
B
NO2
C
P2O5
D
CO2
2
NEET 2017
MCQ (Single Correct Answer)
+4
-1
Change Language
The reason for greater range of oxidation states in actinoids is attributed to
A
actinoid contraction
B
5$$f$$, 6d and 7s levels having comparable energies
C
4$$f$$ and 5d levels being close in energies
D
the radioactive nature of actinoids.
3
NEET 2016 Phase 2
MCQ (Single Correct Answer)
+4
-1
Change Language
Which one of the following statements related to lanthanoids is incorrect?
A
Europium shows + 2 oxidation state.
B
The basicity decreases as the ionic radius decreases from Pr to Lu.
C
All the lanthanons are much more reactive than aluminium.
D
Ce(+4) solutions are widely used as oxidizing agent in volumetric analysis.
4
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.
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