Testing of household items
with red cabbage dye.
In the presence
of a strong bleach the indicator turns dark blue as shown on the right.
Test a number of household items and complete the table below.
Item
Colour change .Acid or Base
Dishwashing liquid.
A mild base.
A strong bleach.
White King.
This is a strong BASE.
Vinegar
Orange juice
Shampoo
Conditioner