1
AIPMT 2001
MCQ (Single Correct Answer)
+4
-1
Which of the following statement is not correct?
A
La(OH)3 is less basic than Lu(OH)3.
B
In lanthanide series ionic radius of Lu+3 ion decreases.
C
La is actually an element of transition series rather lanthanides.
D
Atomic radius of Zn and Hf are same because of lanthanide contraction.
2
AIPMT 2001
MCQ (Single Correct Answer)
+4
-1
The most convenient method to protect the botton of ship made of iron is
A
coating it with red lead oxide
B
white tin plating
C
connecting it with Mg block
D
connecting it with Pb block.
3
AIPMT 2000
MCQ (Single Correct Answer)
+4
-1
Which ion is colourless?
A
Cr4+
B
Se3+
C
Ti3+
D
V3+
4
AIPMT 2000
MCQ (Single Correct Answer)
+4
-1
Which of the following shows maximum number of oxidation states?
A
Cr
B
Fe
C
Mn
D
V
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