Question

29.The endpoint of a titration involving the reaction of MnO4-, to
Mn2+ can be detected by the ...
a. Pink color of MnO4- is disappearing.
b. use of red or blue litmus.
c. use of a pH probe.
d. addition of an indicator like methyl orange.

Answer 1

Answer:

additional of an indicator like methly orange

Answer 2

Option “A” is correct one that is pink color of MNO4 is disappearing.

• The endpoint of a titration concerning the reaction of MnO4-, to  Mn2+ can be perceived by the disappearance of pink color.
• The pink color disappears in the titration because of the reason that of end point reach. It is an indication that the reaction is attaining its endpoint and the reaction between the sample and the titrant are about to complete.