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Q.

Most acidic oxide in the periodic table is formed by an element in

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a

2nd period, Group VI A

b

4th period, Group VII A

c

3rd Period, VI A

d

3rd period, VII A

answer is D.

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Detailed Solution

Most acidic oxide in periodic table is formed by 17th group(VII A) element. since oxides of Fluorine are unstable and cannot form oxo acids and hence the most acidic oxide is formed by chlorine (Cl2O7) belong to 3rd period.

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