When titrating lemon juice with iodine solution in the presence of starch, the color changes from yellow to blue-black. Initially, the iodine solution is brown, which indicates the presence of free iodine. As the titration progresses and all the available ascorbic acid in the lemon juice reacts with the iodine, excess iodine will react with the starch, resulting in the blue-black color. This color change signifies the endpoint of the titration.
The initial color of an iodine solution is yellow-brown.
An iodine solution is typically dark brown or reddish-brown in color.
An iodine solution is typically a dark brown or purple color.
it is a yellowish/orange colour but when iodine is present, than it will turn an dark-blue/black colour
cause iodine(brown) stains the rice
If we add salivary amylase to any solution ( eg:iodine solution) the colour of solution changes to blue.THE TIME TAKEN BY THE SALIVARY AMYLASE TO CHANGE ITS(iodine solution) COLOUR TO BLUE IS CALLED ACROMATIC POINT OF SALIVARY AMYLASE. ie, the time upto which the solution is colourless and after that it gains blue colour.
It turns a dark purple/blue colour
iodine solution
starch will not change its own colour but it can change the colour of iodine solution. iodine solution is originally brown. after adding starch, it will turn into dark blue.
When iodine reacts with starch, the solution will turn a brownish colour.
Petrol changes color when mixed with iodine solution due to covalent bonding.
The color not change.