101⟩ Which of the following is NOT a final product of the overall cell reaction in a hydrogen fuel cell
1. heat
2. electric power
3. carbon dioxide
4. water
Answer: CARBON DIOXIDE
Chemistry
Home Education and Science Chemistry
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176 Chemistry Questions And Answers
102⟩ Which of the following metals react violently with water to produce hydrogen gas
1. sodium
2. zinc
3. platinum
4. silver
Answer: SODIUM
103⟩ The use of electricity to decompose molten sodium chloride into its component elements is an example of
1. electrolysis
2. galvanization
3. a voltaic cell
4. electroplating
Answer: ELECTROLYSIS
104⟩ Another name for heavy water is
1. ice
2. salt water
3. deuterium
4. deuterium oxide
Answer: D
105⟩ Which of the following is true about the Kinetic Theory of Gases
1. gas particles do not attract or repel each other
2. gas particles are attracted to the walls of the container they are in
3. the kinetic energy of gas particles is unrelated to temperature
4. gas particles attract and repel each other
Answer: A
106⟩ The Tyndall Effect can be demonstrated when light is passed through which of the following
1. a colloidal suspension
2. supercritical water
3. aqueous solutions
4. mixtures of gasses
Answer: A
107⟩ Which of the following are NOT carbonate minerals
1. calcite
2. magnesite
3. dolomite
4. graphite
Answer: D
108⟩ Fish in an aquarium require oxygen to live, which is usually done by pumping air into the fish tank using a mechanical pump. If all other things remain constant, the most effective transfer of oxygen to water comes from
1. small bubbles of air
2. large bubbles of air
3. bubbling of cold air
4. slow bubbling of air
Answer: A
109⟩ The wavelength of yellow light is 600 nanometers. What is the wavelength in centimeters
1. 6.0 x 10-9
2. 6.0 x 10-7
3. 6.0 x 10-5
4. 6.0 x 10-2
Answer: C
110⟩ What is the pH of a solution with a hydronium ion concentration of 1 X 10-8 moles/dm3?
1. 7
2. 6
3. 8
4. 7.5
Answer: C
111⟩ Convert -40oF into Centigrade
-40oC
112⟩ What is the only known substance for which there is no triple point
Helium
113⟩ What is the branch of chemistry that deals with the relationship between electricity and chemical reactions?
Electrochemistry
114⟩ Convert 673 Kelvin into degrees centigrade
400 degree C
115⟩ Until the early 1960s, what group of elements were called the inert gases
Noble Gases
116⟩ The reaction of hydrocarbons with oxygen to produce carbon dioxide, water and heat is called
1. fission
2. fusion
3. endothermic
4. combustion
Answer: D
117⟩ Under which of the following conditions will iron rust
1. in water
2. in water and oxygen
3. in oil
4. in oil and water
Answer: B
118⟩ Which of the following is NOT true about the Periodic Table
1. metals tend to gain ele ctrons while nonmetals tend to lose electrons
2. metals tend to lose electrons while nonmetals tend to gain electrons
3. elements with metallic properties are found on the left side of the table
4. alkali metals are found in the vertical column that contains lithium
Answer: A
119⟩ Round the following number to four significant figures and express the result in standard exponential notation 0.006543210?
6.543 X 10-3
120⟩ Never found uncombined on Earth, what element occurs abundantly in limestone, gypsum and fluorite
Calcium
