Identify the correct statements among the following I) Both Cr and Cu – InterviewSolution

1.	Identify the correct statements among the following I) Both Cr and Cu show +1 oxidation state II) The complementary colour of absorbed green colour of visible radiation is purple. III) Ni^(+2) ion in its hydrated state exhibits green colour IV) Devarda's alloy contains least percentage of 'Zn
Answer» All I,II,III only I,IV only I,III only Answer :A

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