WorksheetsELECTRO CHEMISTRY-II
Total questions: 20
Worksheet time: 11mins
Redox titration involve a change in
oxidation potential
Redox potential
DIPHENYLAMINE IS ............ IN REDUCED STATE
COLOURLESS
RED
GREEN
BLUE-VIOLET
ERIOCHROME BLACK T IS ....IN REDUCED STATE
BLUE
VIOLET
BLACK
RED
IN ELECTRODE CONCENTRATION CELL
CONCENTRATION OF ELECTRODE IS SAME
CONCENTRATION OF ELECTROLYTE IS DIFFERENT
CONCENTRATION OF ELECTRODE IS DIFFERENT
TWO DIFFERENT ELECTRODE
METAL-ERIOCHROME COMPLEX IS...... IN COLOUR
RED
BLUE
VIOLET
COLOURLESS
ELECTROLYTE CONCENTRATION CELL
CONCENTRATION OF ELECTROLYTE IS THE SAME
CONCENTRATION OF ELECTROLYTE IS DIFFERENT
CONCENTRATION OF ELECTRODE IS DIFFERENT
ALL
t+ IS THE TRANSPORT NUMBER OF
ANION
CATION
ELECTRODE
ELECTROLYTE
t- + t+=
+1
-1
0
2
LJP CAN BE ELIMINATED BY USING
POROUS PARTITION
SEMI PERMEABLE MEMBRANE
SALT BRIDGE
ALL
WHICH ONE IS CORRECT
EH= +0.0591 pH
EH= - 0.0591 pH
EH= 0.0591 /pH
EH= pH/ 0.0591
QUINHYDRONE IS A MIXTURE OF
QUINONE AND HYDROQUINONE
QUINOLINE AND ISOQUINOLINE
QUINHYDRONE AND HYDROQUINONE
HYDROQUINONE AND QUINOLINE
E0Q VALUE IS
0.6996V
0.9966V
0.9669V
0.6966V
THE REDOX INDICATOR USED IN THE TITRATION OF FERROUS ION AGAINST DICHROMATE ION
POTASSIUN FERROCYANIDE
METHYLORANGE
PHENOLPHTHALEIN
DIPHENYLAMINE
WHICH SALT IS COMMONLY USED IN SALT BRIDGE
KBr
kcl
NaCl
NONE
FOR THE DETERMINATION OF pH OF THE SOLUTION CALOMEL ELECTRODE IS COUPLED WITH
COPPER ELECTRODE
PLATINIUM ELECTRODE
GLASS ELECTRODE
SILVER ELECTRODE
WHEN NaOH IS ADDED pH OF THE SOLUTION ------ IN ACID -BASE TITRATION
DECREASES
INCREASES
ZERO
NONE
IN REDOX TITRATION ,THE PLATINIUM ELECTRODE IS
REFERENCE ELECTRODE
INDICATOR ELECTRODE
STANDARD ELECTRODE
NONE
SOLUBILITY PRODUCT CAN BE DETERMINED BY
log KSP= 0.0591/nE0
log KSP= nE0 -0.0591
log KSP= nE0/0.0591
log KSP= nE0 + 0.0591
FERROIN IS .....COLOUR IN OXIDISED STATE
BLUE
RED
VIOLET
GREEN
PHENYL ANTHRANILIC ACID IS ........COLOUR IN REDUCED STATE
COLOURLESS
RED-VIOLET
RED
BLUE
