Introductory Chemistry Test Questions - 3326 Verified Questions by Quizplus

Introductory Chemistry Test

Questions

Course Introduction

Introductory Chemistry provides students with a foundational understanding of the basic principles of chemistry. Topics include atomic and molecular structure, periodic properties, chemical bonding, stoichiometry, states of matter, chemical reactions, and the properties of solutions. Laboratory exercises emphasize safe practices and the development of analytical skills by applying theoretical concepts to real-world scenarios. This course is designed for students with little to no background in chemistry and prepares them for further study in science and health-related fields.

Recommended Textbook

Chemistry A Molecular Approach 1st Canadian Ediiton by Nivaldo J. Tro

Available Study Resources on Quizplus

25 Chapters

3326 Verified Questions

3326 Flashcards

Source URL: https://quizplus.com/study-set/2476

Page 2

Chapter 1: Units of Measurement for Physical and Chemical Change

Available Study Resources on Quizplus for this Chatper

179 Verified Questions

179 Flashcards

Source URL: https://quizplus.com/quiz/49191

Sample Questions

Q1) Ethylene glycol is commonly used as antifreeze in the cooling systems of vehicles due to its low freezing point, 8.6 °F. What is the freezing point in K?

A)280 K

B)-13 K

C)260 K

D)273 K

E)240 K

Answer: C

Q2) What decimal power does the abbreviation pico represent?

A)1 × 106

B)1 × 109

C)1 × 10-1

D)1 × 10-12

E)1 × 10-15

Answer: D

Q3) Define matter.

Answer: Matter is anything that occupies space and has mass.

Q4) 38.325 lbs = ________ grams. (1 lb = 454 g)

Answer: 17400

Page 3

To view all questions and flashcards with answers, click on the resource link above.

Chapter 2: Atoms and Elements

Available Study Resources on Quizplus for this Chatper

167 Verified Questions

167 Flashcards

Source URL: https://quizplus.com/quiz/49192

Sample Questions

Q1) iron

A)Si

B)Fe

C)Mg

D)C

E)K

Answer: B

Q2) How many protons are in arsenic?

A)33

B)41

C)42

D)41.9

E)75

Answer: A

Q3) Argon belongs to the ________ group of the periodic table.

A)alkali metal

B)alkaline earth metal

C)halogen

D)noble gas

Answer: D

To view all questions and flashcards with answers, click on the resource link above. Page 4

Chapter 3: Molecules, Compounds, and Nomenclature

Available Study Resources on Quizplus for this Chatper

178 Verified Questions

178 Flashcards

Source URL: https://quizplus.com/quiz/49193

Sample Questions

Q1) What is the chemical formula for magnesium hydride?

A)MgH2

B)MgOH

C)MgOH2

D)Mg(OH)2

Answer: A

Q2) oxygen

A)H(g)

B)Ca2(s)

C)I(s)

D)Ne2(g)

E)I2(s)

F)Ne(g)

G)Cl2(g)

H)Cl(g)

I)Ca(s)

J)H2(g)

K)O(g)

L)O2(g)

Answer: L

To view all questions and flashcards with answers, click on the resource link above.

Page 5

Chapter 4: Chemical Reactions and Stoichiometry

Available Study Resources on Quizplus for this Chatper

230 Verified Questions

230 Flashcards

Source URL: https://quizplus.com/quiz/49194

Sample Questions

Q1) Which of the following pairs of aqueous solutions will form a precipitate when mixed?

A)NH4NO3 + Li2CO3

B)Hg2(NO3)2 + LiI

C)NaCl + Li3PO4

D)AgC2H3O2 + Cu(NO3)2

E)None of the above solution pairs will produce a precipitate.

Q2) Which one of the following compounds behaves as an acid when dissolved in water?

A)RaO

B)C4H10

C)HI

D)RbOH

Q3) How many litres of a 0.0550 mol L-1 KCl solution contain 0.163 moles of KCl?

A)3.37 L

B)1.48 L

C)8.97 L

D)2.96 L

E)1.12 L

Q4) Define a spectator ion.

Page 6

To view all questions and flashcards with answers, click on the resource link above.

Chapter 5: Gases

Available Study Resources on Quizplus for this Chatper

154 Verified Questions

154 Flashcards

Source URL: https://quizplus.com/quiz/49195

Sample Questions

Q1) What is the temperature if krypton has a root mean square velocity of 348 m s-1?

A)800°C

B)791°C

C)134°C

D)604°C

E)596°C

Q2) How many grams of F2 gas are there in a 5.00 L cylinder at 5.327 bar and 23 °C?

A)19.5 g

B)41.1 g

C)500 g

D)2.96 × 104 g

Q3) To what temperature must a balloon, initially at 25 °C and 2.00 L, be heated to have a volume of 6.00 L?

A)993 K

B)403 K

C)75 K

D)655 K

E)894 K

To view all questions and flashcards with answers, click on the resource link above. Page 7

Chapter 6: Thermochemistry

Available Study Resources on Quizplus for this Chatper

156 Verified Questions

156 Flashcards

Source URL: https://quizplus.com/quiz/49196

Sample Questions

Q1) Using the following equation for the combustion of octane, calculate the amount of moles of carbon dioxide formed from 100.0 g of octane. The molar mass of octane is 114.33 g mol-1. The molar mass of carbon dioxide is 44.0095 g mol-1. 2C8H18 + 25O2 16CO2 + 18H2O rH° = -11018 kJ

A)18.18 moles

B)6.997 moles

C)14.00 moles

D)8.000 moles

E)10.93 moles

Q2) An unknown metal alloy, specific heat capacity = 0.613 J g-1 °C-1, has a temperature change of 31.02 to 24.77 °C after a heat transfer of -106.4 J. Calculate the mass of the alloy in question.

A)16.8 g

B)12.7 g

C)38.3 g

D)27.8 g

E)9.17 g

Q3) Give the temperature and pressure for the standard state for a liquid.

To view all questions and flashcards with answers, click on the resource link above.

Page 8

Chapter 7: The Quantum-Mechanical Model of the Atom

Available Study Resources on Quizplus for this Chatper

173 Verified Questions

173 Flashcards

Source URL: https://quizplus.com/quiz/49197

Sample Questions

Q1) Choose the diamagnetic species from below.

A)Sn2

B)Br

C)P

D)Cr

E)None of the above is diamagnetic.

Q2) Determine the energy change associated with the transition from n = 2 to n = 5 in the hydrogen atom.

A)-2.18 × 10-19 J

B)+6.54 × 10-19 J

C)+4.58 × 10-19 J

D)-1.53 × 10-19 J

E)+3.76 × 10-19 J

Q3) Give the number of valence electrons for Br-.

A)16

B)18

C)6

D)8

E)7

Q4) Give the ground-state electron configuration for Cd+2.

To view all questions and flashcards with answers, click on the resource link above. Page 9

Chapter 8: Periodic Properties of the Elements

Available Study Resources on Quizplus for this Chatper

127 Verified Questions

127 Flashcards

Source URL: https://quizplus.com/quiz/49198

Sample Questions

Q1) An element that has the valence electron configuration 5s24d5 belongs to which period and group?

A)period 4; group 8

B)period 5; group 9

C)period 5; group 7

D)period 5; group 3

E)period 5; group 13

Q2) Identify the complete electronic configuration for Mn.

A)1s22s22p63s23p64s<su p>24d5

B)1s22s22p63s23p64s<su p>13d6

C)1s22s22p63s23p64s<su p>23d5

D)1s22s22p63s23p64s<su p>24p5

Q3) List the noble gas that has the highest ionization energy.

Q4) Define ionization energy.

Q5) Define electron affinity.

To view all questions and flashcards with answers, click on the resource link above. Page 10

Chapter 9: Chemical Bonding I: Lewis Theory

Available Study Resources on Quizplus for this Chatper

143 Verified Questions

143 Flashcards

Source URL: https://quizplus.com/quiz/49199

Sample Questions

Q1) Which of the following elements can form hypercoordinate compounds?

A)N

B)Br

C)F

D)Be

E)None of the above can form compounds with an expanded octet.

Q2) Identify the longest bond.

A)single covalent bond

B)double covalent bond

C)triple covalent bond

D)All of the above bonds are the same length.

Q3) Define formal charge.

Q4) How many of the following elements can form hypercoordinate compounds? Pb Kr

Si B

A)0

B)1

C)2

D)3

E)4

Q5) Define bond energy.

To view all questions and flashcards with answers, click on the resource link above.

Chapter 10: Chemical Bonding Ii: Molecular Shapes,

Valence Bond Theory, and Molecular Orbital Theory

Available Study Resources on Quizplus for this Chatper

168 Verified Questions

168 Flashcards

Source URL: https://quizplus.com/quiz/49200

Sample Questions

Q1) Using the VSEPR model, the electron-domain geometry of the central atom in SF4 is ________.

A)linear

B)trigonal planar

C)tetrahedral

D)trigonal bipyramidal

E)octahedral

Q2) In molecular orbital theory the acronym HOMO stands for

A)homogenous orbital-molecular orientation.

B)highly ordered molecular orbital.

C)highest occupied molecular orbital.

D)highest orbital-molecular orientation.

E)It has no meaning.

Q3) Explain why oil and water do not mix.

Q4) Determine the electron geometry for the molecule PCl5.

A)Linear

B)Trigonal planar

C)Tetrahedral

D)Trigonal bipyramidal

E)Octahedral

To view all questions and flashcards with answers, click on the resource link above. Page 12

Chapter 11: Liquids, Solids, and Intermolecular Forces

Available Study Resources on Quizplus for this Chatper

132 Verified Questions

132 Flashcards

Source URL: https://quizplus.com/quiz/49201

Sample Questions

Q1) Choose the substance with the highest vapour pressure at a given temperature.

A)SiS2

B)RbCl

C)CH3SCH3

D)BF3

E)SbH3

Q2) CH3CH3

A)dispersion forces

B)dipole-dipole forces

C)ion-dipole forces

D)hydrogen bonding

E)ionic bond

F)H2 + H2O

Q3) Identify the substance with the highest viscosity in the liquid phase.

A)gasoline

B)water

C)corn syrup

D)motor oil

E)tea

Q4) Define viscosity.

To view all questions and flashcards with answers, click on the resource link above. Page 13

Chapter 12: Solutions

Available Study Resources on Quizplus for this Chatper

159 Verified Questions

159 Flashcards

Source URL: https://quizplus.com/quiz/49202

Sample Questions

Q1) A solution is prepared by dissolving 98.6 g of NaCl in enough water to form 875 mL of solution. Calculate the mass % of the solution if the density of the solution is 1.06 g mL-1.

A)11.3%

B)12.7%

C)9.4%

D)10.6%

E)11.9%

Q2) Choose the aqueous solution that has the highest boiling point. These are all solutions of nonvolatile solutes and you should assume ideal van't Hoff factors where applicable.

A)0.100 mol kg-1 AlCl3

B)0.100 mol kg-1 NaCl

C)0.100 mol kg-1 MgCl2

D)0.100 mol kg-1 C6H12O6

E)They all have the same boiling point.

Q3) Why isn't pentanol (CH3CH2CH2CH2CH2OH) very soluble in water?

Q4) Explain why water does not dissolve in gasoline.

To view all questions and flashcards with answers, click on the resource link above. Page 14

Chapter 13: Chemical Kinetics

Available Study Resources on Quizplus for this Chatper

162 Verified Questions

162 Flashcards

Source URL: https://quizplus.com/quiz/49203

Sample Questions

Q1) The rate of disappearance of HBr in the gas phase reaction 2HBr(g) H2(g)+ Br2(g)

Is 0.301 mol L-1 s-1 at 150 °C. The rate of appearance of Br2 is ________ mol L-1 s-1.

A)1.66

B)0.151

C)0.0906

D)0.602

E)0.549

Q2) Explain how the order of a reaction can be determined.

Q3) Given the following balanced equation, determine the rate of reaction with respect to [SO3]. If the rate of SO2 loss is 1.19 × 10-3 mol L-1 s-1, what is the rate of formation of SO3? 2SO2(g)+ O2(g) 2SO3(g)

A)3.56 × 10-3 mol L-1 s-1

B)1.19 × 10-3 mol L-1 s-1

C)1.78 × 10-3 mol L-1 s-1

D)1.42 × 10-2 mol L-1 s-1

E)7.12 × 10-3 mol L-1 s-1

To view all questions and flashcards with answers, click on the resource link above.

Page 15

Chapter 14: Chemical Equilibrium

Available Study Resources on Quizplus for this Chatper

123 Verified Questions

123 Flashcards

Source URL: https://quizplus.com/quiz/49204

Sample Questions

Q1) For the following reaction, what is n required in the conversion of Kc to Kp? KClO3(s) KClO(s)+ O2(g)

D)2

E)1

Q2) Consider the following reaction: NO(g)+ SO3(g) NO2(g)+ SO2(g)

A reaction mixture initially contains 0.86 bar NO and 0.86 bar SO3. Determine the equilibrium pressure of NO2 if Kp for the reaction at this temperature is 0.0118.

A)0.78 bar

B)0.084 bar

C)0.012 bar

D)0.85 bar

E)0.048 bar

Q3) Why is a thermodynamic equilibrium constant unitless?

Q4) Define Le Châtelier's principle.

To view all questions and flashcards with answers, click on the resource link above. Page 16

Chapter 15: Acids and Bases

Available Study Resources on Quizplus for this Chatper

148 Verified Questions

148 Flashcards

Source URL: https://quizplus.com/quiz/49205

Sample Questions

Q1) Calculate the hydroxide ion concentration in an aqueous solution with a pH of 9.85 at 25 °C.

A)7.1 × 10-5 mol L-1

B)4.2 × 10-10 mol L-1

C)8.7 × 10-10 mol L-1

D)6.5 × 10-5 mol L-1

E)1.4 × 10-10 mol L-1

Q2) If an equal number of moles of the weak acid HCN and the strong base KOH are added to water, is the resulting solution acidic, basic, or neutral?

A)acidic

B)basic

C)neutral

D)Depends on the solution volume

Q3) What is the autoionization of water?

Q4) Describe a molecule that can be a Lewis acid.

Q5) What is the difference between a strong and weak acid?

Q6) Do both protons ionize instantaneously from a diprotic acid such as H2CO3? Explain your answer.

Q7) List the major source of energy in North America.

To view all questions and flashcards with answers, click on the resource link above. Page 17

Chapter 16: Aqueous Ionic Equilibrium

Available Study Resources on Quizplus for this Chatper

161 Verified Questions

161 Flashcards

Source URL: https://quizplus.com/quiz/49206

Sample Questions

Q1) What is the pH of a solution made by mixing 10.00 mL of 0.10 mol L-1 acetic acid with 10.00 mL of 0.10 mol L-1 KOH? Assume that the volumes of the solutions are additive. Ka = 1.8 × 10-5 for CH3COOH.

A)5.28

B)7.00

C)8.72

D)10.02

Q2) Which of the following solutions is a good buffer system?

A)a solution that is 0.10 mol L-1 NaCl and 0.10 mol L-1 HCl

B)a solution that is 0.10 mol L-1 HCN and 0.10 mol L-1 LiCN

C)a solution that is 0.10 mol L-1 NaOH and 0.10 mol L-1 HNO3

D)a solution that is 0.10 mol L-1 HNO3 and 0.10 mol L-1 KNO3

E)a solution that is 0.10 mol L-1 HCN and 0.10 mol L-1 NaCl

Q3) Define a buffer.

To view all questions and flashcards with answers, click on the resource link above.

Page 18

Chapter 17: Gibbs Energy and Thermodynamics

Available Study Resources on Quizplus for this Chatper

111 Verified Questions

111 Flashcards

Source URL: https://quizplus.com/quiz/49207

Sample Questions

Q1) Q < 1

A)K = 0

B)?rG > 0

C)(\(\Delta\)rG < 0_

D)?rG < ?rG°

E)equilibrium

F)?rG > ?rG°

G)standard state

Q2) Place the following in order of increasing molar entropy at 298 K. NO CO SO

A)NO < CO < SO

B)SO < CO < NO

C)SO < NO < CO

D)CO < SO < NO

E)CO < NO < SO

Q3) Which of the following statements is TRUE?

A)Entropy is an extensive property.

B)Entropy is not temperature dependent.

C)Exothermic processes decrease the entropy of the surroundings.

D) Suniv is always greater than zero for a nonspontaneous process.

E)Just like enthalpy, entropy has no absolute zero value.

To view all questions and flashcards with answers, click on the resource link above. Page 19

Chapter 18: Electrochemistry

Available Study Resources on Quizplus for this Chatper

126 Verified Questions

126 Flashcards

Source URL: https://quizplus.com/quiz/49208

Sample Questions

Q1) The electrolysis of molten AlCl3 for 3.25 hr with an electrical current of 15.0 A produces ________ g of aluminum metal.

A)147

B)0.606

C)4.55 × 10-3

D)16.4

E)49.1

Q2) How many electrons are transferred in the following reaction? (The reaction is unbalanced.) I2(s)+ Fe(s) Fe3+(aq)+ I (aq)

A)1

B)2

C)6

D)3

E)4

Q3) Why, if we multiply a reaction by 2, don't we multiply its E°red by 2?

Q4) What is electrolysis?

Q5) Why is sugar water not a good conductor of current?

Q6) Why are iron nails coated with zinc?

To view all questions and flashcards with answers, click on the resource link above. Page 20

Chapter 19: Radioactivity and Nuclear Chemistry

Available Study Resources on Quizplus for this Chatper

115 Verified Questions

115 Flashcards

Source URL: https://quizplus.com/quiz/49209

Sample Questions

Q1) Determine the binding energy of a F-19 nucleus. The F-19 nucleus has a mass of 18.99840325 amu. A proton has a mass of 1.00728 amu, a neutron has a mass of 1.008665 amu, and 1 amu is equivalent to 931 MeV of energy.

A)142 MeV

B)796 MeV

C)1080 MeV

D)143 MeV

E)145 MeV

Q2) Determine the binding energy per nucleon of a Mg-24 nucleus. The Mg-24 nucleus has a mass of 24.30506. A proton has a mass of 1.00728 amu, a neutron has a mass of 1.008665 amu, and 1 amu is equivalent to 931 MeV of energy.

A)0.3050 MeV

B)8.83 MeV

C)0.113 MeV

D)106 MeV

E)4.41 MeV

Q3) Why is an alpha emitter much more harmful if it is ingested than when applied to the skin?

Q4) Define radioactivity.

To view all questions and flashcards with answers, click on the resource link above. Page 21

Chapter 20: Organic Chemistry I: Structures

Available Study Resources on Quizplus for this Chatper

109 Verified Questions

109 Flashcards

Source URL: https://quizplus.com/quiz/49210

Sample Questions

Q1) Which of the following pairs are constitutional isomers?

A)CH3CH=CHCH2OH and CH3CH=CHOCH3

B)ClCH2CH2CH2CH3 and CH3CH2CH2CH2Cl C)CH3CH(OH)CH2CH3 and CH3CH2(HO)CHCH3

D)H2NCH2CH=CHCOOH and HOOCCH=CH(H2N)CH2

E)CH3OCH2CH2CH2CH3 and

CH3OCH2CH2CH2OCH3

Q2) What are constitutional isomers?

Q3) What is the difference between the R/ S designation and d/l designation of chiral compounds?

Q4) What is the difference between primary, secondary, and tertiary amines?

Q5) Why are there so many more carbon compounds than the number of compounds made up of all the rest of the elements combined?

Q6) What does the term "racemic mixture" mean?

Q7) What is the index of hydrogen deficiency?

To view all questions and flashcards with answers, click on the resource link above. Page 22

Chapter 21: Organic Chemistry II: Reactions

Available Study Resources on Quizplus for this Chatper

96 Verified Questions

96 Flashcards

Source URL: https://quizplus.com/quiz/49211

Sample Questions

Q1) oxidizing agent

A)substitution at saturated carbon atom, mechanism

B)LiAlH4

C)H+

D)step-growth

E)elimination reaction mechanism

F)Jones reagent

G)hemiketal

H)methoxide

I)CN-

Q2) Identify the step-growth polymer.

A)nylon 6,6

B)polyvinyl chloride

C)polyethylene

D)polypropylene

E)polystyrene

Q3) Which part of HCN, the hydrogen or the cyano group, adds to the O in a C=O bond and why?

Q4) Why doesn't benzene typically undergo addition reactions like the alkenes do?

To view all questions and flashcards with answers, click on the resource link above. Page 23

Chapter 22: Biochemistry

Available Study Resources on Quizplus for this Chatper

55 Verified Questions

55 Flashcards

Source URL: https://quizplus.com/quiz/49212

Sample Questions

Q1) Which one of the following amino acids does not contain a basic side chain?

A)arginine

B)histidine

C)lysine

D)threonine

Q2) In the sequence Arg-Pro-Leu-Gln, which amino acid contains the C-terminal group?

A)proline

B)leucine

C)glutamine

D)arginine

Q3) Which of the following shows all of the tripeptides that can be formed from one molecule each of lysine (Lys), threonine (Thr), and histidine (His)?

A)LysThrHis

B)LysThrHis, LysHisThr, HisThrLys, HisLysThr, ThrLysHis, ThrHisLys

C)LysThrHis, LysHisThr, HisLysThr, ThrHisLys

D)LysThrHis, LysHisThr, HisLysThr

E)LysThrHis and LysHisThr

Q4) Why are lipids well-suited as structural components of cell membranes?

Q5) How do cis- and trans-fats differ?

Q6) What is a codon?

Page 24

To view all questions and flashcards with answers, click on the resource link above.

Chapter 23: Chemistry of the Nonmetals

Available Study Resources on Quizplus for this Chatper

50 Verified Questions

50 Flashcards

Source URL: https://quizplus.com/quiz/49213

Sample Questions

Q1) Determine the number of vertices and faces in the closo-Borane B12H122-.

A)vertices = 12, faces = 24

B)vertices = 12, faces = 20

C)vertices = 8, faces = 16

D)vertices = 6, faces = 8

E)vertices = 8, faces = 12

Q2) Describe the major production method for obtaining oxygen.

Q3) Determine the oxidation state of phosphorus in P2O74 .

A)+5

B)+4

C)+3

D)+7

E)+2

Q4) Why are the chemical properties of nitrogen and phosphorus so different when they are in the same family?

Q5) Write the balanced reaction that shows the formation of ICl3 from its elements.

Q6) Why are phosphate compounds added to detergents?

Page 25

To view all questions and flashcards with answers, click on the resource link above.

Chapter 24: Metals and Metallury

Available Study Resources on Quizplus for this Chatper

49 Verified Questions

49 Flashcards

Source URL: https://quizplus.com/quiz/49214

Sample Questions

Q1) Which of the following is TRUE of powder metallurgy?

A)Machining is required after forming the component.

B)There is more waste than with casting the molten metal.

C)Iron powder from mill scrap makes a denser component than iron particles formed through water atomization.

D)It is used to separate gangue from the rest of the metal ore.

E)It usually requires lower temperatures than casting the molten metal.

Q2) Which of the following describes gangue?

A)the undesirable product formed during smelting

B)the undesirable portion of a metal-containing ore

C)the volatile product formed during calcination

D)a waste material that is the product of smelting a metal ore

E)a crude metal that still has to be further purified for industrial use

Q3) Electrometallurgy is

A)refining of metal ores using heat.

B)forming metal parts using electricity.

C)forming metal parts using heat and small crystals of metal.

D)refining of metal ores using oxidation-reduction reactions.

E)refining of metal ores using reactions with aqueous solutions.

Q4) Why is zinc used to coat steel objects?

To view all questions and flashcards with answers, click on the resource link above.

Chapter 25: Transition Metals and Coordination Compounds

Available Study Resources on Quizplus for this Chatper

55 Verified Questions

55 Flashcards

Source URL: https://quizplus.com/quiz/49215

Sample Questions

Q1) What is a coordinate covalent bond?

Q2) Which of the following pairs of coordination compounds or complex ions are examples of linkage isomers?

A)[Cu(NH3)5Br]Cl and [Cu(NH3)5Cl]Br

B)[Fe(NH3)2(H2O)4]Cl2 and

[Fe(NH3)4(H2O)2]Cl2 C)[Fe(CO)5NO2]2+ and [Fe(CO)5ONO]2+

D)[Fe(NH3)2(H2O)4]Cl2 and

[Fe(NH3)2(H2O)4]Br2

E)[Cr(H2O)6]3+ and [Cr(NH3)6]3+

Q3) How many d electrons are there in CrO72-?

Q4) Explain how EDTA is used to treat lead poisoning.

To view all questions and flashcards with answers, click on the resource link above. Page 27