Look at the colours Or Inree anerent indicators. Teams
result with
Assignments
acid
alkali
neutral
indicator A
red
blue
purple
Calendar
indicator B
red
yellow
orange
indicator
colourless
pink
colourless
.
Aluminium sulfate is used in water purification,
Zaon tests aluminium sulfate solution with three indicators A, B and C.
Here are his results.
result with
Indicator A
Indicator C
indicrtor B
red
aluminium sulfate
red
colourless