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Q.

Mark the correct statement(s)

i) Manganese exhibits +7 oxidation state

ii) Zinc forms coloured ions

iii) Sc forms +4 oxidation state

iv) Zn exhibits only +2 oxidation state

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a

i and ii   

b

i and iii

c

i and iv  

d

iii and iv

answer is C.

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Detailed Solution

Mn+7,Zn+2are possible

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Mark the correct statement(s)i) Manganese exhibits +7 oxidation stateii) Zinc forms coloured ionsiii) Sc forms +4 oxidation stateiv) Zn exhibits only +2 oxidation state