JEE Advanced 2018 Paper 2

Section: Chemistry

Question : 20 of 54

Marks: +1, -0

The correct option(s) to distinguish nitrate salts of Mn2+ and Cu2+ taken separately is (are) :-

[JEE Adv 2018 P2]

Mn2+ shows the characteristic green colour in the flame test
Only Cu2+ shows the formation of precipitate by passing H2S in acidic medium
Only Mn2+ shows the formation of precipitate by passing H2S in faintly basic medium
Cu2+/Cu has higher reduction potential than Mn2+/Mn (measured under similar conditions)

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