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KVPY SX SB Exam 19-Nov-2017 Question Paper
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Question : 51
Total: 120
The reactivity of the following compounds towards water is in the order
C
l
2
O
7
<
P
2
O
5
<
B
2
O
3
B
2
O
3
<
P
2
O
5
<
C
l
2
O
7
P
2
O
5
<
B
2
O
3
<
C
l
2
O
7
B
2
O
3
<
C
l
2
O
7
<
P
2
O
5
Validate
Solution:
These dissolve in water to form hydroxy acid. Stronger acidic oxide react more faster Acidic strength increase with increase in EN
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