General Chemistry
Pre-Test Questions
Course Introduction
General Chemistry provides a foundational understanding of the principles governing the structure, properties, and transformations of matter. The course covers topics including atomic and molecular structure, chemical bonding, stoichiometry, states of matter, thermochemistry, chemical equilibrium, acids and bases, kinetics, and an introduction to organic and inorganic chemistry. Throughout the course, students develop critical problem-solving skills and laboratory techniques essential for exploring and analyzing chemical phenomena in both theoretical and practical contexts.
Recommended Textbook
Chemistry An Introduction to General Organic and Biological Chemistry 12th Edition by Karen C.
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Page 2
Chapter 1: Chemistry in Our Lives
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Sample Questions
Q1) Working with a group of students can help you learn chemistry.
A)True
B)False
Answer: True
Q2) The chemical used to make cans and foil is ________.
Answer: aluminum
Q3) There is more traffic between 8 and 9 in the morning because most people start work at 9.This would be a(n)________.
A)observation
B)hypothesis
C)experiment
D)theory
E)all the above
Answer: B
Q4) 0.000 860
Answer: 8.60 × 11ea71d0_de1b_eec9_91e5_93247662557d_TB6077_11
Q5) A substance that consists of one type of matter and always has the same composition and properties is called a ________. Answer: chemical
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Chapter 2: Chemistry and Measurement
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Sample Questions
Q1) According to the United States Food and Drug Administration,the recommended daily requirement of protein is 44 g.This is ________ of protein.
A)1248.5 oz
B)320 000 oz
C)1.6 oz
D)0.0605 oz
E)150 000 oz
Answer: C
Q2) If there are 14 books on the shelf,14 is a(n)________ number.
Answer: exact
Q3) 75.00 m
Answer: 4
Q4) When the measured number 675 is added to the measured number 87.10,the answer should be rounded to the ones place.
A)True
B)False
Answer: True
Q5) 0.705 m
Answer: 3
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Chapter 3: Matter and Energy
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Sample Questions
Q1) In which of the following would the particles move most rapidly?
A)ice at -20 °C
B)water at 20 °C
C)steam at 110 °C
D)boiling water
E)ice at 0 °C
Answer: C
Q2) Absolute zero is ________.
A)the freezing point of water using the Celsius scale
B)the boiling point of liquid nitrogen
C)the temperature on the Kelvin scale corresponding to 32 °F
D)the coldest temperature possible
E)the freezing point of liquid nitrogen
Answer: D
Q3) The degree Celsius is a unit of energy.
A)True
B)False
Answer: False
Q4) Air is an example of a ________ mixture.
Answer: homogeneous
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Chapter 4: Atoms and Elements
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Sample Questions
Q1) The number of valence electrons found in an atom of a Group A element is equal to
A)its atomic number
B)its mass number
C)its group number
D)eight
E)eight minus the group number
Q2) Chromium is a metal.
A)True
B)False
Q3) The electron arrangement of any particular atom shows ________.
A)the number of isotopes possible
B)a description of the shape of each electron energy level
C)the number of electrons in each energy level
D)a diagram of an atomic nucleus
E)the maximum number of electrons each energy level can hold
Q4) Radon is a metal.
A)True
B)False
Q5) Magnesium
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Chapter 5: Nuclear Chemistry
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Sample Questions
Q1) The recommended dosage of I-131 for a test is 4.2 Ci per kg of body mass.How many millicuries should be given to a 55 kg patient? (1 mCi = 1000 Ci)?
A)230 mCi
B)0.23 mCi
C)0.076 mCi
D)760 mCi
E)13.8 mCi
Q2) After two half-lives,the radioactivity of a sample is ________ of its original activity.
Q3) If absorbed internally,alpha particle emitters are the most damaging because alpha particles ________.
A)have the largest charge
B)have the greatest energy
C)have the greatest mass
D)consist of high energy electrons
E)consist of pure energy
Q4) If a neutron is lost from a nucleus,the atomic number ________.
Q5) There are ________ microcuries in one millicurie.
Q6) In alpha emission,the atomic number ________.
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Chapter 6: Ionic and Molecular Compounds
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Sample Questions
Q1) When barium and chlorine combine,the formula of the product is BaCl<sub>3</sub>.
A)True
B)False
Q2) The formula for hydroxide is OH<sup>-</sup>.
A)True
B)False
Q3) The main type of attractive forces between molecules of ammonia (NH<sub>3</sub>)are ________.
A)ionic bonds
B)hydrogen bonds
C)polar covalent
D)dipole-dipole attractions
E)dispersion forces
Q4) When Al<sup>3+</sup> and Br<sup>-</sup> combine,the formula of the product is Al<sub>3</sub>Br.
A)True
B)False
Q5) The molecule SCl<sub>2</sub> is linear.
A)True
B)False
8
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Chapter 7: Chemical Quantities and Reactions
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Sample Questions
Q1) 0.100 mole of lithium has a mass of ________.
A)3.00 g
B)0.300 g
C)6.94 g
D)0.694 g
E)0.700 g
Q2) The following is a decomposition reaction.
2KClO<sub>3</sub> 2KCl + 3O<sub>2</sub>
A)True
B)False
Q3) This is an example of a ________ reaction.
A)combustion
B)combination
C)decomposition
D)single replacement
E)double replacement
Q4) The molar mass of chlorine gas is 35.45 g/mole.
A)True
B)False
Q5) The number of particles in 1 mole of hydrogen gas is ________.
Page 9
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Chapter 8: Gases
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Sample Questions
Q1) At STP,what is the volume of 4.50 moles of nitrogen gas?
A)167 L
B)3420 L
C)101 L
D)60.7 L
E)1230 L
Q2) A gas has a pressure of 540.torr when the temperature is 127 °C.When the temperature changes to 27 °C,what is the new pressure,if there is no change in volume or amount of gas?
Q3) A sample of nitrogen gas had a volume of 500.mL,a pressure in its closed container of 740 torr,and a temperature of 25 °C.What was the new volume of the gas when the temperature was changed to 50 °C and the new pressure was 760 torr?
A)530 mL
B)450 mL
C)970 mL
D)240 mL
E)400 mL
Q4) STP is ________ mmHg and ________K.
Q5) What is the volume,in L,of 36.0 g of CH<sub>4</sub> at STP?
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Chapter 9: Solutions
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Sample Questions
Q1) Which solution is isotonic to a red blood cell?
A)water
B)0.5% NaCl
C)2% glucose
D)0.9% NaCl
E)10% glucose
Q2) A solution which has 12 g of solute dissolved in 200.mL of solution has a m/v concentration of ________.
Q3) ________ can pass through filters but cannot pass through semipermeable membranes.
Q4) How many equivalents are in 0.036 mole of Ca<sup>2+</sup>?
Q5) What is the concentration,mass/volume percent (m/v),of a solution prepared from 50.g NaCl and 2.5 L of water?
A)5.0% (m/v)
B)2.0% (m/v)
C)0.020% (m/v)
D)0.050% (m/v)
E)20.% (m/v)
Q6) If 450.mL of 6.0 M KBr solution is diluted to 900.mL,the concentration of the KBr solution is _____M.
Page 11
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Chapter 10: Acids and Bases and Equilibrium
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Sample Questions
Q1) A system is at equilibrium when the rate of the forward and reverse reactions are equal.
A)True
B)False
Q2) The name given to an aqueous solution of HBr is ________.
A)hydrogen bromide
B)hydrobromic acid
C)bromic acid
D)bromous acid
E)hypobromous acid
Q3) A 10.0 mL of 0.121 M H<sub>2</sub>SO<sub>4 </sub>is neutralized by 17.1 mL of KOH solution.The molarity of the KOH solution is ________.
A)0.207 M
B)0.414 M
C)0.0708 M
D)0.428 M
E)0.142 M
Q4) The name of H<sub>2</sub>SO<sub>4</sub> is hydrosulfuric acid.
A)True B)False
Page 12
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Chapter 11: Introduction to Organic Chemistry: Hydrocarbons
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Sample Questions
Q1) The IUPAC name for CH3-CH2 -C C-CH<sub>3</sub> is ________.
A)3-pentyne
B)2-pentyne
C)pentyne
D)1-methylbutyne
E)2-propene
Q2) Most medicines are organic molecules.
A)True
B)False
Q3) An unsaturated compound always ________.
A)is a cycloalkane
B)contains a double bond
C)contains a triple bond
D)contains at least one double or triple bond
E)contains only single bonds
Q4) When hydrogen is added to 1-pentene in the presence of a platinum catalyst,the product is 1-pentyne.
A)True
B)False
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Chapter 12: Alcohols, Thiols, Ethers, Aldehydes, and Ketones
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Sample Questions
Q1) The carbonyl group does not have a dipole.
A)True
B)False
Q2) The suffix -al indicates an aldehyde in the IUPAC system of naming.
A)True
B)False
Q3) Alcohols can form hydrogen bonds.
A)True
B)False
Q4) Tertiary alcohols are oxidized to ________.
A)secondary alcohols
B)ketones
C)aldehydes
D)carboxylic acids
E)none of the above
Q5) Alcohols can be dehydrated to form alkenes.
A)True
B)False
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Chapter 13: Carbohydrates
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Sample Questions
Q1) Amylose is a form of starch which has ________.
A)only -1,4-bonds between glucose units
B)only -1,4-links bonds glucose units
C)both -1,4-and -1,4-bonds between glucose units
D)hemiacetal links joining glucose units
E)carbon-carbon bonds joining glucose units
Q2) Cellulose is a polysaccharide which has ________.
A)only -1,4-bonds between glucose units
B)only -1,4-links bonds glucose units
C)both -1,4-and -1,6-bonds between glucose units
D)hemiacetal links joining glucose units
E)carbon-carbon bonds joining glucose units
Q3) The product of reduction of xylose is xylitol.
A)True
B)False
Q4) Sucrose is a disaccharide.
A)True
B)False
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Chapter 14: Carboxylic Acids, Esters, Amines, and Amides
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Sample Questions
Q1) Amines contain the element ________.
A)nitrogen
B)oxygen
C)sulfur
D)astatine
E)arginine
Q2) When compared to sulfuric acid,how strong are carboxylic acids?
A)stronger
B)just as strong
C)weaker
D)not acidic at all
Q3) Crack cocaine is produced by the neutralization and extraction of cocaine from its hydrochloride salt.
A)True
B)False
Q4) Amines are rarely found in physiologically active compounds.
A)True
B)False
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Chapter 15: Lipids
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Sample Questions
Q1) The type of lipid that gives a cell membrane its structure is a ________.
A)triacylglycerol
B)glycerophospholipid
C)prostaglandin
D)fatty acid
E)wax
Q2) Which of the following fatty acids is most likely to be a solid at room temperature?
A)palmitoleic
B)oleic
C)stearic
D)linoleic
E)linolenic
Q3) Oleic acid is a saturated fatty acid.
A)True
B)False
Q4) Steroids do not contain fatty acids.
A)True
B)False
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Chapter 16: Amino Acids, Proteins, and Enzymes
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Sample Questions
Q1) Which of the following is not a function of proteins?
A)provide structural components
B)stores the genetic information of a living organism
C)movement of muscles
D)catalyze reactions in the cells
E)transport substances through the bloodstream
Q2) At a pH > 9,the ionized form of glycine will have ________.
A)a net positive charge
B)a net negative charge
C)an overall charge of zero
D)low solubility in water
E)a negative charge on the nitrogen
Q3) In the lock-and-key model of enzyme action,the enzyme active site is thought of as ________.
A)a rigid,nonflexible shape that fits the substrate exactly
B)an area of the enzyme that can adjust to fit the substrate shape
C)a key-like shape that fits into a pocket of the substrate surface
D)a hydrophilic area on the enzyme surface
E)a lock that bars a noncompetitive inhibitor from reacting
Q4) The protein that transports oxygen in the blood is ________.
Page 18
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Chapter 17: Nucleic Acids and Protein Synthesis
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Sample Questions
Q1) What tripepetide is coded for by the following mRNA sequence? -UUU AGA CCA-
A)Phe-Pro-Arg
B)Pro-Arg-Phe
C)Phe-Arg-Pro
D)Leu-Pro-Arg
E)Phe-Thr-Pro
Q2) In the synthesis of mRNA,an adenine in the DNA pairs with ________.
A)uracil
B)adenine
C)guanine
D)thymine
E)cytosine
Q3) The start codon is AUG.
A)True
B)False
Q4) mRNA codons contain three "letters."
A)True
B)False
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Chapter 18: Metabolic Pathways and Energy Production
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Sample Questions
Q1) Which of the three major stages of metabolism includes the citric acid cycle?
A)stage one
B)stage two
C)stage three
Q2) substance 12
Q3) In the dehydrogenation of succinate to fumarate in the citric acid cycle,the coenzyme used is ________.
A)CoA
B)acetyl-CoA
C)NAD<sup>+</sup>
D)NADH
E)FAD
Q4) Anabolic reactions are reactions that ________.
A)use oxidation but not reduction
B)break down large molecules into smaller ones
C)take place in the mitochondria
D)require energy
E)give off energy
Q5) substance 16
Q6) substance 2
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