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31 questions
Neutral solutions have a pH of:
0
1
7
14
Vinegar, fruit juice, and cola are examples of:
strong acids
strong bases
strong bases
weak acids
Is laundry detergent an acid or an alkali?
Acid
Alkali
Neither (Neutral)
Is pure water acidic, alkali, or neutral?
Acidic
Alkali
Neutral
Vinegar is an example of:
An acid.
An alkali.
Neither an acid nor an alkali.
Which of the following word pairs correctly completes the sentence below?
_______ are corrosive substances characterized as having a strong smell, a sour taste, and a _______.
Acids; pH less than 7
Acids; pH greater than 7
Alkali; pH greater than 7
Alkali; pH less than 7
The pH of a solution is tested, and it is found to be an alkaline solution. Of the following choices, what could the pH have been?
3
9
7
5
What would be considered the weakest alkali?
8
14
7.8
11.6
Which of the following is an acid?
vinegar
bleach
sugar in water
starch in water
toothpaste in water
Alkalis will turn litmus paper __________, while acids will turn litmus paper __________.
blue.....red
red.....blue
pink.........colourless
colourless..........pink
According to the image, the substance tested is a...
Acid
Neutral
Strong Acid
Alkali
According to the image, the substance tested is a...
Acid
Alkali
Neutral
Strong Acid
What are indicators used for
Measuring density of substances
Drinking
Measuring strength of acids or alkalis
Decoration
Are indicatiors safe to drink
No
Yes
Could be
IT IS DANGEROUS
How many colours does Universal indicator have?
1-14
3-10
2-11
All of the above
What products at home have alkali?
Toothpaste
Orange juice
Milk
Tea
Substance that shows change in colour when brought in contact with acids and alkali
instructors
neutralizer
indicators
salts
from what number to what number does alkali on the pH scale ?
1-7
8-14
8-12
8-100
from what number to what number is acid ?
1-7
1-6
1-14
2-7
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