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How many moles of elements are added when 2.5 mole Cr2O7 ^2– reduced in Cr^3+ ?

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in Redox reactions and electrochemistry by (73.2k points)
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How many moles of elements are added when 2.5 mole Cr2O7 2– reduced in Cr3+ ?

(a)  12.5

(b)  15

(c)  7.5

(d)  10 

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1 Answer

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15  moles of elements are added when 2.5 mole Cr2O72– reduced in Cr3+.

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