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D and F Block Elements question

2015 · Shift 1 · Q18

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PYQ Library
JEE Advanced
Chemistry
D and F Block Elements
2015 · Shift 1 · Q18

D and F Block Elements question

2015 · Shift 1 · Q18

JEE AdvancedChemistryD and F Block ElementsMultiple correct+4 / −2

The correct statements about Cr

{}^{2+}

and Mn

{}^{3+}

is(are) (Atomic numbers of Cr = 24 and Mn = 25)

A
Cr ${}^{2+}$ is a reducing agent.
B
$Mn^{3+}$ is an oxidizing agent.
C
both $Cr^{2+}$ and $Mn^{3+}$ exhibit d4 electronic configuration.
D
when $Cr^{2+}$ is used as a reducing agent, the chromium ion attains d5 electronic configuration.

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