NEET 2021 Model Test Paper 1

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Question : 50 of 180

Marks: +1, -0

Which of the following order is incorrect?

Li2O<Na2O<K2O<Rb2O < Cs2O(Basic)
HClO<HClO2<HClO3 <HClO4(Acidic)
HI<HBr<HCl<HF(Acidic)
Mn2O7<MnO2<MnO(Basic)

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