1
AIPMT 2003
MCQ (Single Correct Answer)
+4
-1
The correct order of ionic radii of Y3+, La3+, Eu3+ and Lu3+ is
(Atomic nos. Y = 39, La = 57, Eu = 63, Lu = 71)
A
Y3+ < La3+ < Eu3+ < Lu3+
B
Y3+ < Lu3+ < Eu3+ < La3+
C
Lu3+ < Eu3+ < La3+ < Y3+
D
La3+ < Eu3+ < Lu3+ < Y3+
2
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
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 2002
MCQ (Single Correct Answer)
+4
-1
Zn gives H2 gas with H2SO4 and HCl but not with HNO3 because
A
Zn act as oxidising agent when react with HNO3
B
HNO3 is weaker acid than H2SO4 and HCl
C
In electrochemical series Zn is above hydrogen
D
NO$$_3^ - $$ is reduced in preference to hydronium ion.
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