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JEEMAIN and NEET
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JEEMAIN PAST PAPERS
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2011
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Q)
Which one of the following order represents the correct sequence of the increasing basic nature of the given oxides ?
( A )
N
a
2
O
<
K
2
O
<
M
g
O
<
A
l
2
O
3
( B )
M
g
O
<
K
2
O
<
A
l
2
O
3
<
N
a
2
O
( C )
A
l
2
O
3
<
M
g
O
<
N
a
2
O
<
K
2
O
( D )
K
2
O
<
N
a
2
O
<
A
l
2
O
3
<
M
g
O
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