1
In Burette
Nitrite solution
2
In conical flask
10 cm
3
0.1 N KMnO4+90 cm3 1 N H
2
SO
4
+ potato pieces ( 0.5 g for NaNO
2
and 2.00 g for KNO
2
3
Indicator
KMnO
4
itself
4
End point
Pink to colourless
Table 4a:
Three burette readings were recorded and CBR was recorded as X cm
3
for nitrite solution.