Question

and start stop watch and record the time required when blue colour just appears.
Repeat the procedure given in step 6 for solution in flask B, C and D.
bservation table :
Time requirea
Flasks 0.1 M 0.2 M Water Starch 0.01M
KIO,/(mL) H,SO/ (mL) solution/ Na,sog! appearance of
(mL)
(mL) (mL)
colour
A
10
10
80
5
25
B
20
10
70
5
25
C С
30
10
60
5
25
D
40
10
50
5
25
sult:
e rate of reaction between potassium iodate (KIO,) and sodium sulphite (Na,
.
..
. Add 5 mL of freshly prepared starch solution to each flask. (For prevention of oxidate
Add 25 mL of 0.01 M freshly prepared Na, So, to flask A. time required for appearance of the blur colour


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Answer 1

Answer:

sorry iam helpless. i will try my best