1
AIPMT 2003
MCQ (Single Correct Answer)
+4
-1
Which one of the following compounds is not a protonic acid?
A
B(OH)3
B
PO(OH)3
C
SO(OH)2
D
SO2(OH)2
2
AIPMT 2003
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
The method of zone refining of metals is based on the principle of
A
greater mobility of the pure metal than that of the impurity
B
higher melting point of the impurity than that of the pure metal
C
greater noble character of the solid metal than that of the impurity
D
greater solubility of the impurity in the molten state than in the solid
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
EXAM MAP
Medical
NEET
Graduate Aptitude Test in Engineering
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CBSE
Class 12