1
AIPMT 2007
MCQ (Single Correct Answer)
+4
-1
Which of the following anions is present in the chain structure of silicates?
A
(Si2O$$_5^{2 - }$$)n
B
(SiO$$_3^{2 - }$$)n
C
SiO$$_4^{4 - }$$
D
Si2O$$_7^{6 - }$$
2
AIPMT 2007
MCQ (Single Correct Answer)
+4
-1
Which one of the following orders correctly represents the increasing acid strengths of the given acids?
A
HOClO < HOCl < HOClO3 < HOClO2
B
HOClO2 < HOClO3 < HOClO < HOCl
C
HOClO3 < HOClO2 < HOClO < HOCl
D
HOCl < HOClO < HOClO2 < HOClO3
3
AIPMT 2007
MCQ (Single Correct Answer)
+4
-1
Which one of the following ions is the most stable in aqueous solution?
(At. No. Ti = 22, V = 23, Cr = 24, Mn = 25)
A
V3+
B
Ti3+
C
Mn3+
D
Cr3+
4
AIPMT 2007
MCQ (Single Correct Answer)
+4
-1
Identify the incorrect statement among the following:
A
Lanthanoid contraction is the accumulation of successive shrinkages.
B
As a result of lanthanoid contraction, the properties of 4d series of the transition elements have no similarities with the 5d series of elements.
C
Shielding power of 4$$f$$ electrons is quite weak.
D
There is a decrease in the radii of the atoms or ions as one proceeds from La to Lu.
EXAM MAP