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WorksheetsChemistry Entrance Exam
Total questions: 25
Worksheet time: 20mins
Name
Class
Date
1.
A solution with a pH of 8.6 would be...
a)
Acid
b)
Base
c)
Neutral
d)
Acid and Base
2.
A solution with a pH of 3.6 would be...
a)
Acid
b)
Base
c)
Neutral
d)
Acid and Base
3.
A solution with a pH of 7.0 would be...
a)
Acid
b)
Base
c)
Neutral
d)
Acid and Base
4.
The pH scale is a range from:
a)
1-7
b)
0-14
c)
1-14
d)
1-20
5.
What does pH measure?
a)
Amount of Oxygen Ions
b)
Amount of Hydrogen/Hydronium Ions
c)
The amount of salt in a solution
d)
The density
6.
The lower the pH, the greater the concentration of :
a)
OH-
b)
H+
7.
The greater the pOH, the smaller the concentration of
a)
OH-
b)
H+
8.
This indicates an acidic substance:
a)
[H+]<[OH-]
b)
[H+]>[OH-]
c)
[H+]:[OH-]
9.
What are the reactants for the reaction of metal with water?
Metal + water ---> metal hydroxide + hydrogen
Metal + water ---> metal hydroxide + hydrogen
a)
Metal
b)
Water
c)
Metal and water
d)
Metal hydroxide and hydrogen
10.
What are the products for the reaction of metal with water?
Metal + water ---> metal hydroxide + hydrogen
Metal + water ---> metal hydroxide + hydrogen
a)
Metal
b)
Water
c)
Metal and water
d)
Metal hydroxide and water
11.
What metal hydroxide is produced when magnesium reacts with water?
a)
Copper hydroxide
b)
Magnesium oxide
c)
Magnesium
d)
Magnesium hydroxide
12.
What gas is always produced when a metal reacts with water?
a)
Oxygen
b)
Carbon dioxide
c)
Hydrogen
d)
Carbon monoxide
13.
Which salt will be produced if magnesium react with hydrochloric acid?
a)
Magnesium oxide
b)
Magnesium sulfate
c)
Magnesium sulfide
d)
Magnesium chloride
14.
What are the products for the reaction of metal with acid?
Metal + acid ---> metal salt + hydrogen
Metal + acid ---> metal salt + hydrogen
a)
Metal salt and hydrogen
b)
Metal salt
c)
Metal
d)
Acid
15.
What does the blue section of the equation represent?
H2O+ CO2 → H2CO3
H2O+ CO2 → H2CO3
a)
reactants
b)
products
c)
synthesis
d)
catalyst
16.
What does the white section of the equation represent?
H2O+ CO2 → H2CO3
H2O+ CO2 → H2CO3
a)
Product
b)
reactant
c)
catalysts
d)
inhibitor
17.
Which salt is LEAST soluble at 0 ºC?
a)
K2Cr2O7
b)
KNO3
c)
KClO3
d)
Ce2(SO4)3
18.
What color does an acid turn an indicator?
a)
Blue
b)
Red
c)
Purple
d)
Orange
19.
In a neutralization reaction, what are the products of a reaction between an acid and a base?
a)
Another acid and base
b)
Carbon dioxide and a salt
c)
Water and a salt
d)
Either two acids or two bases
20.
Which of the following is most likely to be basic:
a)
Lemon juice
b)
Vinegar
c)
Laundry detergent
d)
Coke
21.
is this object acidic or base
a)
Acidic
b)
Base
c)
neither
d)
neutral
22.
Human blood has a pH between 7.35 and 7.45. Which of the following best describes human blood?
a)
strongly acidic
b)
slightly acidic
c)
strongly basic
d)
slightly basic
23.
This is one way to show a neutral substance:
a)
[H+]=[OH-]
b)
[H+]~~[OH-]
c)
[H+]<[OH-]
d)
[H+]>[OH-]
24.
Bleach is a strong base, what is the pH level of bleach?
a)
13
b)
8
c)
1
d)
2
25.
Carrie's teacher hands out test tubes filled with different chemicals and tells the students to identify their liquid as an acid, base, or neutral chemical. Carrie's test tube contains a clear chemical. She adds phenolpthalein to her test tube and gently moves the tube from side to side. A few moments later, the chemical in the test tube turns bright pink.
What type of chemical does Carrie have?
What type of chemical does Carrie have?
a)
Carrie has a neutral chemical.
b)
Carrie has an acidic chemical.
c)
Carrie has a basic chemical.
d)
The type of chemical Carrie has cannot be determined.
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