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WorksheetsAcids and Bases
Total questions: 25
Worksheet time: 15mins
Name
Class
Date
1.
Acids are what range on the pH scale?
a)
0-14
b)
0-6.99
c)
7
d)
7.1-14
2.
Vinegar is an example of __________
a)
A base
b)
An acid
c)
A neutral substance
3.
Bases are what range on the pH scale?
a)
0-6.99
b)
7
c)
7.1-14
d)
0-14
4.
When found in food, acids are ________
a)
Sour
b)
Bitter
c)
Salty
d)
Slippery
5.
When found in food, bases are _______.
a)
Sour
b)
Bitter
c)
Salty
d)
Soggy
6.
What color does acid turn litmus paper?
a)
It turns litmus paper purple.
b)
It turns red litmus paper blue.
c)
It turns blue litmus paper blue.
d)
It turns blue litmus paper red.
7.
What color does bases turn litmus paper?
a)
It turns litmus paper purple.
b)
It turns blue litmus paper red.
c)
It turns red litmus paper blue.
d)
It turns red litmus paper re
8.
Drain cleaner has a pH of 13. What is drain cleaner?
a)
An acid.
b)
A strong base.
c)
Neutral.
d)
A weak base.
9.
What are properties of acids?
a)
Bitter, slippery, ph above 7
b)
Sour, reacts with metals, ph below 7
c)
Sour, reacts with metals, ph above 7
d)
Bitter, ph of 7, does not react with metals
10.
What are properties of a base?
a)
Slippery, bitter, does not react with metals, pH above 7.
b)
Slippery, bitter, reacts with metals, pH below 7.
c)
Sour, reacts with metals, pH below 7
d)
Sour, reacts with metals, pH above 7.
11.
Which of these substances is acidic?
a)
tap water
b)
lemon
c)
ammonia
d)
baking soda
12.
What might happen if you mixed a strong acid with an equally strong base?
a)
You would see an explosive chemical reaction.
b)
The acid would destroy the base.
c)
The base would destroy the acid.
d)
You'd wind up with a pH-neutral substance.
13.
Which of the following substances is basic?
a)
soda
b)
lemon juice
c)
soap
d)
vinegar
14.
Which of the following substances is basic?
a)
Apple juice
b)
Ginger ale
c)
Baking soda
d)
Distilled water
15.
pH stands for:
a)
Potency of hydrogen
b)
Plurality of hydrogen
c)
Potential of hydrogen
d)
Pleurisy of hydrogen
16.
What do acids and bases have in common?
a)
They both eat away at metal.
b)
They can both conduct electricity.
c)
They both have a sour taste.
d)
They both form positively charged ions when dissolved in water.
17.
________ taste bitter.
a)
Acids
b)
Bases
18.
When you combine an acid with a base it produces ___.
a)
a huge explosion
b)
a very dangerous gas
c)
a salt and water
19.
T or F: Neutral solutions have a pH of 0
a)
True
b)
False
20.
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 _______.
_______ are corrosive substances characterized as having a strong smell, a sour taste, and a _______.
a)
Acids; pH less than 7
b)
Acids; pH greater than 7
c)
Bases; pH greater than 7
d)
Bases; pH less than 7
21.
Solution with a high pH. Contains a lot of hydroxide ions.
a)
Acidic
b)
Basic
c)
Neutral
22.
The table below lists the approximate pH values of common household items. Which of the above items is the most basic?
a)
vinegar
b)
baking soda
c)
ammonia
d)
lemon juice
23.
The pH scale measures...
a)
...the strength of an acid.
b)
...the strength of hydrogen ions.
c)
...the concentration of hydrogen ions.
d)
...the concentration of an acid
24.
Which solute is the least soluble at 90 ⁰C?
a)
SO2
b)
KClO3
c)
KI
d)
HCl
25.
Pollution causes the pH of rain water fall below 6. What is such type of rain called?
a)
Acid rain
b)
polluted rain
c)
low pH rain
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