blue
purple or blue
phenolphthalien when added to an acidic solution has a colourless indicator. but shows pink colour for basic solution.
It depends on the concentration of the ammonia solution as the universal indicator can show a huge variety of colors.
Green
A dark purple.
purple or blue
Orange, low acidic substance.
phenolphthalien when added to an acidic solution has a colourless indicator. but shows pink colour for basic solution.
It depends on the concentration of the ammonia solution as the universal indicator can show a huge variety of colors.
Green
red
Green
A dark purple.
universal indicator solution can be used to determine acid or base at the same time . Its changes its colour and helps in determing the chwmical property
The Universal Indicator would go green which is pH 7.
red. on the PH scale it is 1.
An indicator is a substance that changes colour in the presence of another substance. Let say inside the beaker are substances of both glucose and starch. The glucose and starch are of same colour. By injecting the lugol's solution into the beaker, the lugol's solution changes colour in the area of where starch is, while no colour changes in the presence of glucose. Thus, by using the Lugol's solution which only acts as indicator for starch and not glucose, we could tell part which area floats around with glucose and starch substances. Lugol's solution works as an indicator because it will stain starches due to iodine's interaction with the coil structure of the polysaccharide.