WorksheetsIndicators
Total questions: 15
Worksheet time: 5mins
what is a indicator
potato
an acid
a chemical that measures ph
a reactive metal
what is the PH of a lemon?
4-7ph
1-3ph
8-11ph
12-14ph
What color will it show if acid is placed on blue litmus paper
It will not change
It will turn red
it will turn green
it will turn purple
What is the PH for alkaline
1-4
4-7
8-14
1-14
What is the PH for neutral
4
7
8
10
What is the PH of baking soda?
1-7
8-14
What is the PH of salt
3
7
9
12
What happens if you put a very strong acid into universal indicator?
It will stay the same
it will turn red
it will turn purple
it will turn blue
What is the color of methyl orange when you put alkaline in it?
It will be orange
it will be blue
it will be yellow
it will be red
What reaction can pheonolphtalein make?
Become white (colorless)
Become colorless
become yellow
Become pink
Is it true that universal indicator will turn purple when alkaline is placed
True
false
Will universal indicator appear blue if you add acid to it?
Yes
no
If alkaline was added into ihymolphthalein, what color will it be?
Light blue
yellow
orange yellow
dark blue
Which indicator appear red when acid is added
Universal Indicator
pheonolphtalein
ihymolphthalein
methyl orange
Which indicator will appear colourless when it is neutral
universal indicator
methyl orange
phenolphtalein
ihymolphthalein
