Chemistry Standard 12>Transition and Inner Transition Elements>Compounds of Mn and Cr (KMnO4 and K2Cr2O7)

Compounds of Mn and Cr (KMnO4 and K2Cr2O7)

Author:Maharashtra Board

12th Maharashtra Board

IMPORTANT

Important Questions on Compounds of Mn and Cr (KMnO4 and K2Cr2O7)

HARD

IMPORTANT

Chemistry Standard 12>Transition and Inner Transition Elements>Compounds of Mn and Cr (KMnO4 and K2Cr2O7)> Q 1

Balance the following equation:

$K_{2} {Cr}_{2} O_{7} + KI + H_{2} {SO}_{4} \overset{}{\to} K_{2} {SO}_{4} + {Cr}_{2} {({SO}_{4})}_{3} + 7 H_{2} O + 3 I_{2}$

HARD

IMPORTANT

Chemistry Standard 12>Transition and Inner Transition Elements>Compounds of Mn and Cr (KMnO4 and K2Cr2O7)> Q 2

Balance the following equation:

${KMnO}_{4} + H_{2} C_{2} O_{4} + H_{2} {SO}_{4} \overset{}{\to} {MnSO}_{4} + K_{2} {SO}_{4} + H_{2} O + {CO}_{2}$

MEDIUM

IMPORTANT

Chemistry Standard 12>Transition and Inner Transition Elements>Compounds of Mn and Cr (KMnO4 and K2Cr2O7)> Q 3

Which steps are involved in the manufacture of potassium dichromate from chromite ore?

MEDIUM

IMPORTANT

Chemistry Standard 12>Transition and Inner Transition Elements>Compounds of Mn and Cr (KMnO4 and K2Cr2O7)> Q 4

Give any four uses of ${KMnO}_{4}$ .