KCET 2019 Chemistry Solved Paper

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Question : 9 of 60

Marks: +1, -0

Which of the following statement is wrong?

Metals in highest oxidation states are more stable in oxides than in fluorides.
All elements of 3d series exhibit variable oxidation states.
In highest oxidation states, the transition metals show acidic character.
Mn3+ and Co3+ are oxidizing agents in aqueous solution.

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