1
Q
Universal indicator…
A
A mixture of dyes that will a turn a solution any colour on the PH scale
2
Q
Litmus paper…
A
will turn blue for an alkali, purple for neutral solutions and red for an acid.
3
Q
methly orange…
A
red in acid. yellow in alkaline
4
Q
phenolphthalein…..
A
turns colourless in an acidic solution. Bright pink in alkalines.
