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JEEMAIN and NEET
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JEEMAIN PAST PAPERS
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2007
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Q)
The charge/size ratio of a cation determines its polarizing power. Which one of the following sequences represents the increasing order of the polarizing power of the cationic species,
K
+
,
C
a
2
+
,
M
g
2
+
,
B
e
2
+
?
( A )
B
e
2
+
<
K
+
<
C
a
2
+
<
M
g
2
+
( B )
K
+
<
C
a
2
+
<
M
g
2
+
<
B
e
2
+
( C )
M
g
2
+
<
B
e
2
+
<
K
+
<
C
a
2
+
( D )
C
a
2
+
<
M
g
2
+
<
B
e
2
+
<
K
+
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