1
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.
2
NEET 2016 Phase 2
MCQ (Single Correct Answer)
+4
-1
Change Language
Jahn-Teller effect is not observed in high spin complexes of
A
d7
B
d8
C
d4
D
d9
3
NEET 2016 Phase 2
MCQ (Single Correct Answer)
+4
-1
Change Language
Which of the following fluro-compounds is most likely to behave as a Lewis base ?
A
BF3
B
PF3
C
CF4
D
SiF4
4
NEET 2016 Phase 2
MCQ (Single Correct Answer)
+4
-1
Change Language
Suppose the elements X and Y combine to form two compounds XY2 and X3Y2. When 0.1 mole of XY2 weights 10 g and 0.05 mole of X3Y2 weighs 9 g, the atomic weights of X and Y are
A
40, 30
B
60, 40
C
20, 30
D
30, 20