Chemistry, asked by summaiyafatima60, 4 months ago

Calculate the Oxidation number of underlined element

a.NaBH4 b.Cr2O7

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Answers

Answered by awadprajakta24

3

Answer:

Cr−2O

7

−2

:2× (oxidation number of Cr ) +7(−2)=−2 ;

∴ ( Oxidation number of Cr) = 2+12=+6

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