Iodine
it will remain the same
It is a white coloured crystalline substance
red
This depends on the kind of pH paper.
1. evolution of a gas 2. change in colour of the substance 3. change in temperature of the substance 4. formation of precipitate
Chlorophyll
Chlorophyll.
it will remain the same
nickateen
White as pure, dry substance
It is a white coloured crystalline substance
Red
copper sulphate
blue
red
Orange, low acidic substance.
An Indicator.