1
AIPMT 2004
MCQ (Single Correct Answer)
+4
-1
lanthanoids are
A
14 elements in the sixth period (atomic no. 90 to 103) that are filling 4f sublevel
B
14 elements in the seventh period (atomic number = 90 to 103) that are filling 5f sublevel
C
14 elements in the sixth period (atomic number = 58 to 71) that are filling the 4f sublevel
D
14 elements in the seventh period (atomic number = 50 to 71) that are filling 4f sublevel.
2
AIPMT 2004
MCQ (Single Correct Answer)
+4
-1
Among the following series of transition metal ions, the one where all metal ions have 3d2 electronic configuration is
[At. Nos. Ti = 22, V = 23, Cr = 24, Mn = 25]
A
Ti3+, V2+, Cr3+, Mn4+
B
Ti+, V4+, Cr6+, Mn7+
C
Ti4+, V3+, Cr2+, Mn3+
D
Ti2+, V3+, Cr4+, Mn5+
3
AIPMT 2003
MCQ (Single Correct Answer)
+4
-1
Which one of the following characteristics of the transition metals is associated with their catalytic activity?
A
High enthalpy of atomization
B
Paramagnetic behaviour
C
Colour of hydrated ions
D
Variable oxidation states
4
AIPMT 2003
MCQ (Single Correct Answer)
+4
-1
The basic character of the transition metal monoxides follows the order
(Atomic no's. Ti = 22, V = 23, Cr = 24, Fe = 26)
A
VO > CrO > TiO > FeO
B
CrO > VO > FeO > TiO
C
TiO > FeO > VO > CrO
D
TiO > VO > CrO > FeO
NEET Subjects
EXAM MAP
Medical
NEETAIIMS
Graduate Aptitude Test in Engineering
GATE CSEGATE ECEGATE EEGATE MEGATE CEGATE PIGATE IN
Civil Services
UPSC Civil Service
Defence
NDA
Staff Selection Commission
SSC CGL Tier I
CBSE
Class 12