General Chemistry
Exam Questions
Course Introduction
General Chemistry provides a foundational overview of the principles and concepts underlying the field of chemistry. Key topics include atomic and molecular structure, chemical bonding, stoichiometry, states of matter, thermodynamics, chemical reactions, equilibrium, acids and bases, and basic kinetics. The course emphasizes problem-solving skills, laboratory techniques, and safe handling of chemicals, preparing students with the essential knowledge needed for further studies in chemistry and related scientific disciplines.
Recommended Textbook Chemistry An Introduction to General Organic and Biological Chemistry 12th Edition by Karen C.
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2
Chapter 1: Chemistry in Our Lives
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Sample Questions
Q1) The substances released when tissues are injured are ________.
Answer: prostaglandins
Q2) Water,H<sub>2</sub>O,is an example of a(n)________.
A)chemical
B)solid
C)wave
D)electric charge
E)element
Answer: A
Q3) One way to enhance your learning in chemistry is to ________.
A)study a little every day
B)form a study group
C)go to office hours
D)be an active learner
E)all the above
Answer: E
Q4) 5 207 000
Answer: 5.207 × 11ea71d0_de1c_15da_91e5_151deacf7932_TB6077_11
Q5) 351 000 000 000
Answer: 3.51 × 11ea71d0_de1b_eec8_91e5_8f75e6f0dd0e_TB6077_11
Page 3
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Chapter 2: Chemistry and Measurement
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Sample Questions
Q1) What is the density of a substance with a mass of 45.00 g and a volume of 26.4 mL?
A)1.70 g/mL
B)1.7 g/mL
C)0.59 g/mL
D)0.587 g/mL
E)45.0 g/mL
Answer: A
Q2) A doctor's order is 0.125 g of ampicillin.The liquid suspension on hand contains 250 mg/5.0 mL.How many milliliters of the suspension are required?
A)0.0025 mL
B)3.0 mL
C)2.5 mL
D)6.3 mL
E)0.0063 mL
Answer: C
Q3) There are 1000 g in a mg.
A)True
B)False
Answer: True
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Chapter 3: Matter and Energy
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Sample Questions
Q1) The temperature at which water melts and freezes is the same.
A)True
B)False
Answer: True
Q2) Carbohydrates and proteins have the same caloric value per gram.
A)True
B)False
Answer: True
Q3) The heat of fusion for water is 80.cal/g.How many calories of heat are needed to melt a 35 g ice cube that has a temperature of 0 °C?
A)2300 cal
B)1600 cal
C)2800 cal
D)540 cal
E)0 cal
Answer: C
Q4) The degree Celsius is a unit of energy.
A)True
B)False
Answer: False
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Chapter 4: Atoms and Elements
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Sample Questions
Q1) Which element would have physical and chemical properties similar to chlorine?
A)Ar
B)Br
C)S
D)O
E)P
Q2) The atomic number is equal to the number of protons.
A)True
B)False
Q3) Which of the following elements is a noble gas?
A)oxygen
B)chlorine
C)bromine
D)argon
E)nitrogen
Q4) A calcium atom two electrons in the fourth energy level.
A)True
B)False
Q5) Argon
Q6) The symbol for sodium is ________.
Page 6
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Chapter 5: Nuclear Chemistry
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Sample Questions
Q1) The shielding required for gamma rays is ________.
Q2) There are ________ microcuries in one millicurie.
Q3) The half-life of a radioisotope is ________.
A)one-half of the time it takes for the radioisotope to completely decay to a nonradioactive isotope
B)the time it takes for the radioisotope to become an isotope with one-half of the atomic weight of the original radioisotope
C)the time it takes for the radioisotope to become an isotope with one-half the atomic number of the original radioisotope
D)the time it takes for the radioisotope to lose one-half of its neutrons
E)the time it takes for one-half of the sample to decay
Q4) The half-life of bromine-74 is 25 min.How much of a 4.0 mg sample is still active after 75 min?
A)0.50 mg
B)1.0 mg
C)2.0 mg
D)0.25 mg
E)4.0 mg
Q5) In beta emission,the atomic number ________.
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Chapter 6: Ionic and Molecular Compounds
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Sample Questions
Q1) The common ions of iron are Fe<sup>+</sup> and Fe<sup>2+</sup>.
A)True
B)False
Q2) In a molecule with covalent bonding,________.
A)oppositely charged ions are held together by strong electrical attractions
B)atoms of metals form bonds to atoms of nonmetals
C)atoms of different metals form bonds
D)atoms are held together by sharing electrons
E)atoms of noble gases are held together by attractions between oppositely charged ions
Q3) The formula of the compound chromium(III)oxide is Cr<sub>2</sub>O<sub>3</sub>.
A)True
B)False
Q4) What is the symbol for the ion with 19 protons and 18 electrons?
A)F<sup>+</sup>
B)F<sup>-</sup>
C)Ar<sup>+</sup>
D)K<sup>-</sup>
E)K<sup>+</sup>
Q5) carbon tetrachloride
Page 8
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Chapter 7: Chemical Quantities and Reactions
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Sample Questions
Q1) The following is a decomposition reaction.
2KClO<sub>3</sub> 2KCl + 3O<sub>2</sub>
A)True
B)False
Q2) The reaction of carbon with oxygen to produce carbon monoxide is an example of which class of reaction?
2C + O<sub>2</sub> 2CO
A)single replacement
B)double replacement
C)combination
D)catalytic
E)endothermic
Q3) The molar mass of chlorine gas is 35.45 g/mole.
A)True
B)False
Q4) The molar mass of silver is 47 g/mole.
A)True
B)False
Q5) What is the mass,in grams,of 1.00 mole of argon gas?
Q6) The number of particles in 1 mole of hydrogen gas is ________.
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Chapter 8: Gases
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Sample Questions
Q1) STP stands for 0 °C and 760 mmHg.
A)True
B)False
Q2) What temperature scale is used in gas law calculations?
A)Fahrenheit
B)Celsius
C)Kelvin
D)either Celsius or Fahrenheit
E)either Celsius or Kelvin
Q3) A 5.00-L tank contains helium gas at 1.50 atm.What is the pressure of the gas in mmHg?
A)1.50 mmHg
B)507 mmHg
C)760 mmHg
D)1140 mmHg
E)3800 mmHg
Q4) The kinetic energy of a gas sample is directly proportional to the Kelvin temperature of the gas.
A)True
B)False
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Chapter 9: Solutions
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Sample Questions
Q1) 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)
Q2) What volume of a 1.5 M KOH solution is needed to provide 3.0 moles of KOH?
A)3.0 L
B)0.50 L
C)2.0 L
D)4.5 L
E)0.22 L
Q3) ________ can pass through filters but cannot pass through semipermeable membranes.
Q4) A substance that completely ionizes in water is a ________ electrolyte.
Q5) How many equivalents are in 0.036 mole of Ca<sup>2+</sup>?
Q6) If 450.mL of 6.0 M KBr solution is diluted to 900.mL,the concentration of the KBr solution is _____M.
Q7) When NH<sub>4</sub>Cl is added to water,the salt will be ________.
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Chapter 10: Acids and Bases and Equilibrium
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Sample Questions
Q1) The function of a buffer is to ________.
A)change color at the end point of a titration
B)maintain the pH of a solution
C)be a strong base
D)maintain a neutral pH
E)act as a strong acid
Q2) When a reaction is at equilibrium,________.
A)all reaction stops
B)no more reactants are converted to products
C)the reaction is no longer reversible
D)the forward and reverse reactions occur at the same rate
E)the products and reactants have the same energy content
Q3) The conjugate base of H<sub>2</sub>O is ________.
A) H<sub>3</sub>O<sub>+</sub>
B) OH<sup>-</sup>
C) H<sub>2</sub>O
D) O<sup>2-</sup>
E) H<sub>2</sub>O has no conjugate base.
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Page 12
Chapter 11: Introduction to Organic Chemistry: Hydrocarbons
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Sample Questions
Q1) An alkyne is an organic compound that contains a ________ bond.
A)single
B)double
C)triple
D)aromatic
E)hydrogen
Q2) Hexane has six carbon atoms.
A)True
B)False
Q3) A compound that contains the ring structure of benzene is called a(n)________.
A)alkane
B)cycloalkane
C)alkyl group
D)aromatic compound
E)hydrocarbon
Q4) One essential building block of aspirin,ibuprofen,and acetaminophen is the benzene ring.
A)True
B)False
Page 13
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Chapter 12: Alcohols, Thiols, Ethers, Aldehydes, and Ketones
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Sample Questions
Q1) Secondary alcohols can be oxidized to ketones.
A)True
B)False
Q2) Acetone is sometimes produced in pathological conditions such as diabetes or following extreme diets.
A)True
B)False
Q3) When 2-methyl-2-butanol undergoes dehydration in acid,one product is
A)2-methyl-2-butene
B)2-methylbutanone
C)2-pentanone
D)2-methylbutanal
E)hexene
Q4) Alcohols can form hydrogen bonds.
A)True
B)False
Q5) A tertiary alcohol can be easily oxidized to a carboxylic acid.
A)True
B)False
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Chapter 13: Carbohydrates
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Sample Questions
Q1) The product of oxidation of an aldose is a carboxylic acid.
A)True
B)False
Q2) Hyperglycemia is a condition in which ________.
A)the glucose level in the blood is about 100 mg/dL
B)the amount of glucose in the urine is lower than normal
C)the glucose level in the blood is higher than normal
D)the glucose level in the pancreas is lower than normal
E)the glucose level in the liver is lower than normal
Q3) Humans cannot digest cellulose because they ________.
A)lack the necessary enzymes to digest -glycosides
B)are allergic to -glycosides
C)are poisoned by -glycosides
D)have intestinal flora which use up -glycosides
E)cannot digest chlorophyll
Q4) In glucose,the -OH group on carbon 4 is above the plane of the ring.
A)True
B)False
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Page 15
Chapter 14: Carboxylic Acids, Esters, Amines, and Amides
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Sample Questions
Q1) What happens to water solubility as the hydrocarbon chain length increases in carboxylic acids?
A)It increases.
B)It decreases.
C)It stays the same.
Q2) Heroin is a synthetic compound developed from morphine.
A)True
B)False
Q3) Carboxylic acids are strong acids.
A)True
B)False
Q4) Crack cocaine is produced by the neutralization and extraction of cocaine from its hydrochloride salt.
A)True
B)False
Q5) Carboxylic acids are responsible for the sweet taste of fruits and vegetables.
A)True
B)False
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Chapter 15: Lipids
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Sample Questions
Q1) The main lipid components in cellular membranes are ________.
A)glycerolphospholipids
B)fatty acids
C)steroids
D)triacylglycerols
E)waxes
Q2) In the fluid-mosaic model of cell membranes,the phospholipid molecules are oriented with their heads to the outside of the membrane.
A)True
B)False
Q3) Which of the following is not a function of glycerophospholipids?
A)transport of triacylglycerols
B)regulation of cellular permeability
C)protect nerve cells
D)aid in digestion
E)transport of cholesterol
Q4) One function of glycerophospholipids is to provide structure to cell membranes.
A)True
B)False
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Chapter 16: Amino Acids, Proteins, and Enzymes
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Sample Questions
Q1) A noncompetitive inhibitor ________.
A)binds at the active site of the enzyme
B)alters the three-dimensional structure of the enzyme
C)increases the rate of the enzyme-catalyzed reaction
D)has a structure similar to the substrate
E)has its effect reversed by adding more substrate
Q2) The heme in hemoglobin is a(n)________.
A)protein chain
B)small molecule within a protein
C)helix area in the hemoglobin molecule
D)pleated sheet area in the hemoglobin molecule
E)oxygen molecule within the hemoglobin molecule
Q3) The function of myoglobin is to ________.
A)carry vitamins in the blood
B)carry oxygen in the blood
C)support the skeletal muscles
D)carry oxygen in the muscle
E)provide strength in cartilage
Q4) The molecules to which an enzyme binds are called the ________.
Q5) The optimum temperature for most biological enzymes is ________.
Page 18
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Chapter 17: Nucleic Acids and Protein Synthesis
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Sample Questions
Q1) Which one of the following base pairs is found in DNA?
A)adenine-thymine
B)adenine-guanine
C)cytosine-thymine
D)adenine-uracil
E)guanine-uracil
Q2) The unique sequence of bases in a nucleic acid is called the ________ structure.
A)ionic
B)primary
C)secondary
D)tertiary
E)quaternary
Q3) Which of the following can be found in DNA?
A)ribose
B)GMP
C)uracil
D)deoxyadenosine
E)FMN
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Chapter 18: Metabolic Pathways and Energy Production
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Sample Questions
Q1) Which step is found in the breakdown of a fatty acid?
A)an activation that requires 2 ATP.
B)an oxidation with a cytochrome c.
C)an oxidation with CoQ.
D)direct substrate phosphorylation.
E)production of pyruvate.
Q2) The citric acid cycle involves two decarboxylation reactions.
A)True
B)False
Q3) The digestion of fats begins in the ________.
A)mouth
B)stomach
C)small intestine
D)gall bladder
E)large intestine
Q4) substance 15
Q5) Carbohydrate digestion begins in the mouth.
A)True
B)False
Q6) substance 12
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