Properties common to the elements manganese, iron, cobalt, nickel and copper include the ready formation by them all of
(I) coloured ions in aqueous solution
(II) oxides of nitrogen are formed o

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Properties common to the elements manganese, iron, cobalt, nickel and copper include the ready formation by them all of
(I) coloured ions in aqueous solution
(II) oxides of nitrogen are formed on reaction with concentrated HNO3
(III) chlorides of formula MCl2 and MCl3

Prashant Kotian · Accepted Answer

Correct answer: B

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