D block reactions Flashcards

1
Q

K2Cr2O7 prep

A

FeCr2O4 + Na2CO3 + O2 —–> Na2CrO4 + Fe2O3 + CO2
Na2CrO4 + H+ ——> Na2Cr2O7 + Na+ + H2O
Na2Cr2O7 + KCl —–> K2Cr2O7 + NaCl

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2
Q

KMnO4 prep

A

MnO2 + KOH + O2 —–> K2MnO4 + H2O

K2MnO4 + H+ ——> KMnO4 + H2O + MnO2

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3
Q

KMnO4 on heating

A

K2MnO4 + MnO2 + O2

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4
Q

CrO4 2- + H+ ———–>

A

Cr2O7 2-

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5
Q

Cr2O7 2- + OH- ————>

A

CrO4 2-

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6
Q

Cr2O7 2- + H+ ———->

A

Cr3+ H2O

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7
Q

MnO4 - in acidic medium

A

Mn2+

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8
Q

MnO4 - in basic medium

A

MnO2

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