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D and F Block Elements question

2018 · Shift 2 · Q3

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PYQ Library
JEE Advanced
Chemistry
D and F Block Elements
2018 · Shift 2 · Q3

D and F Block Elements question

2018 · Shift 2 · Q3

JEE AdvancedChemistryD and F Block ElementsMultiple correct+4 / −1

The correct option(s) to distinguish nitrate salts of

M{n^{2 + }}

and

C{u^{2 + }}

taken separately is (are)

A
$M{n^{2 + }}$ shows the characteristic green color in the flame test
B
Only $C{u^{2 + }}$ shows the formation of precipitate by passing ${H_2}S$ in acidic medium
C
Only $M{n^{2 + }}$ shows the formation of precipitate by passing ${H_2}S$ in faintly basic medium
D
$C{u^{2 + }}/Cu$ has higher reduction potential than $M{n^{2 + }}/Mn$ (measured under similar conditions)

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