Chemistry Fundamentals Multiple Choice Questions Quiz

Reviewed by Zohra Sattar Waxali
Zohra Sattar Waxali, PhD (Chemistry) |
Chemistry
Review Board Member
Dr. Zohra Sattar Waxali earned her doctorate in chemistry and biochemistry from Northwestern University, specializing in the metallomes of cardiac cells and stem cells, and their impact on biological function. Her research encompasses the development of arsenoplatin chemotherapeutics, stapled peptide estrogen receptor inhibitors, and antimicrobial natural products.
, PhD (Chemistry)
By Thomasthegreat
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Thomasthegreat
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  • 1/160 Questions

    One atomic mass unit is defined as

    • Exactly 1/14 the mass of a C-12 atom
    • Exactly 14 times the mass of a C-12 atom
    • Exactly 1/12 the mass of a C-12 atom
    • Exactly 12 times the mass of a C-12 atom
    • None of the above
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About This Quiz

Welcome to our Chemistry Fundamentals Quiz! This quiz is designed to test your understanding of the essential concepts in chemistry. Whether you're a student studying for an exam or someone interested in exploring the basics of chemistry, this quiz offers a comprehensive review of fundamental principles. Explore topics such as atomic structure, chemical bonding, periodic trends, and basic reactions through See morea series of engaging multiple-choice questions.

Each question is carefully crafted to cover key concepts in a clear and concise manner, ensuring an enriching learning experience for participants of all levels. By taking part in this quiz, you'll have the opportunity to assess your knowledge, identify areas for improvement, and strengthen your foundation in chemistry. Challenge yourself and embark on a journey through the fundamental principles that govern the world of chemistry. Let's dive into the Chemistry Fundamentals Quiz and discover the fascinating world of atoms, molecules, and reactions together!

Chemistry Fundamentals Multiple Choice Questions Quiz - Quiz

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  • 2. 

    pH is an important factor in

    • Consumer products

    • Swimming pools

    • Human blood

    • Soil in gardens and farms

    • All of the above

    Correct Answer
    A. All of the above
    Explanation
    Test 5

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  • 3. 

    An acidic solution such as vinegar

    • Turns litmus paper blue

    • Turns litmus paper red

    • Has a salty taste

    • Feels slippery

    • Has a bitter taste

    Correct Answer
    A. Turns litmus paper red
    Explanation
    Test 5

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  • 4. 

    An example of a binary compound is

    • NaOH

    • O2

    • H2S

    • CaCO3

    • Co

    Correct Answer
    A. H2S
    Explanation
    Test 1

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  • 5. 

    Classify the following reaction: 2NaClO3 = 2NaCl + 3O2

    • Combustion

    • Synthesis

    • Decomposition

    • Single displacement

    • Double displacement

    Correct Answer
    A. Decomposition
    Explanation
    Test 2

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  • 6. 

    Which of the following is true for hydrochloric acid?

    • HCl = H + Cl (

    • It is a weak acid

    • HCl = H + Cl (>99%)

    • HCl = H + Cl (>50%)

    • HCl = H + Cl (

    Correct Answer
    A. HCl = H + Cl (>99%)
    Explanation
    Test 5

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  • 7. 

    A lab procedure involving the careful addition of an acid from a buret is called

    • Titration

    • Dilution

    • Endpoint

    • Standard

    • Distillation

    Correct Answer
    A. Titration
    Explanation
    Test 5

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  • 8. 

    Which of the following careers would involve a lot of work with solutions?

    • Chemistry teacher

    • Water quality analyst

    • Environmental chemist

    • Quality control technician

    • All of the above

    Correct Answer
    A. All of the above
    Explanation
    Test 5

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  • 9. 

    Which of the following matches of group number and common name is incorrect?

    • Group 2 - Alkaline Earth Metals

    • Group 6 - Lanthanides

    • Group 1 - Alkali Metals

    • Group 17 - Halogens

    • Group 18 - Noble Gases

    Correct Answer
    A. Group 6 - Lanthanides
    Explanation
    Test 1

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  • 10. 

    Which of the following matches of group number and common name is incorrect?

    • Group 7 - Transition Metals

    • Group 2 - Alkali Earth Metals

    • Group 17 - Halogens

    • Group 2 - Actinides

    • Group 18 - Noble Gases

    Correct Answer
    A. Group 2 - Actinides
    Explanation
    Test 1

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  • 11. 

    Hydroselenic acid is a very toxic substance. Its chemical formula is

    • HSe

    • H2SeO

    • H2Se

    • H2SeO3

    • H2SeO4

    Correct Answer
    A. H2Se
    Explanation
    Test 2

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  • 12. 

    An example of a binary compound is

    • NaOH

    • O2

    • H2S

    • CaCO3

    • Co

    Correct Answer
    A. H2S
    Explanation
    Test 2

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  • 13. 

    The particle that has the smallest mass is the

    • Electron

    • Proton

    • Nucleus

    • Ion

    • Neutron

    Correct Answer
    A. Electron
    Explanation
    Test 1

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  • 14. 

    Which of the following is a common source of water contamination?

    • Landfill leachate

    • Agricultural fertilizers and pesticides

    • Road salt runoff

    • Mining and mine tailings

    • All of the above

    Correct Answer
    A. All of the above
    Explanation
    Test 4

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  • 15. 

    An amphiprotic substance

    • Acts only like an acid

    • Acts like an acid or a base

    • Acts only like a base

    • Remains neutral

    • None of the above

    Correct Answer
    A. Acts like an acid or a base
    Explanation
    Test 5

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  • 16. 

    The person given credit for developing the first modern periodic table is

    • Dalton

    • Democritus

    • Thomson

    • Mendeleev

    • Chadwick

    Correct Answer
    A. Mendeleev
    Explanation
    Test 1

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  • 17. 

    According to the Lewis model of the atom, the number of bonding electrons in a nitrogen atom is

    • 1

    • 2

    • 3

    • 5

    • 7

    Correct Answer
    A. 3
    Explanation
    Test 1

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  • 18. 

    Multivalent metals

    • Can form more than one ion, each with its own charge

    • Can exist in several different crystalline forms

    • Appear only in the representative metal groups

    • Contain more than one populated energy level

    • Form an ion whose charge is 2+ or greater

    Correct Answer
    A. Can form more than one ion, each with its own charge
    Explanation
    Test 1

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  • 19. 

    The substance NH3 is a very important industrial chemical. It is used directly as a fertilizer and is also used to produce many other useful chemicals. The IUPAC name of this substance is

    • Hydrogen nitride

    • Ammonia

    • Hydrogen peroxide

    • Octane

    • Ammonium

    Correct Answer
    A. Ammonia
    Explanation
    Test 2

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  • 20. 

    The IUPAC name for KMnO4 is

    • Krpyton manganese tetraoxide

    • Potassium manganate

    • Potassium permanganate

    • Potassium manganese oxide

    • Potassium monomanganese tetraoxide

    Correct Answer
    A. Potassium permanganate
    Explanation
    Test 2

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  • 21. 

    Classify the following reaction: Cl2 + ZnI2 = ZnCl2 + I2

    • Combustion

    • Synthesis

    • Decomposition

    • Single displacement

    • Double displacement

    Correct Answer
    A. Single displacement
    Explanation
    Test 2

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  • 22. 

    Stainless steel is harder than pure iron because

    • It is an alloy

    • It is metallic

    • The electrons in it are free to move

    • All of the above

    • None of the above

    Correct Answer
    A. It is an alloy
    Explanation
    Test 2

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  • 23. 

    Which of the following is the most reactive element?

    • Helium

    • Radon

    • Francium

    • Hydrogen

    • Ununoctium

    Correct Answer
    A. Francium
    Explanation
    Test 1

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  • 24. 

    A compound compoesd of sodium, sulfur, and oxygen would be named

    • Sodium peroxide

    • Sulfuric acid

    • Sodium sulfide

    • Sodium sulfate

    • Sodium hydroxide

    Correct Answer
    A. Sodium sulfate
    Explanation
    Test 1

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  • 25. 

    The reaction of silver nitrate with zinc would be classified as a 

    • Combustion reaction

    • Synthesis reaction

    • Double displacement reaction

    • Decomposition reaction

    • Single displacement reaction

    Correct Answer
    A. Single displacement reaction
    Explanation
    Test 2

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  • 26. 

    The total number of atoms represented in the formula Be(C2H3O2)2 is

    • 4

    • 8

    • 15

    • 22

    • 29

    Correct Answer
    A. 15
    Explanation
    Test 3

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  • 27. 

    Carbon dioxide and water are produced when ethanol, C2H5OH, is burned in oxygen. The number of moles of CO2 that is produced when burning 6.0 mol of ethanol is

    • 1.0

    • 3.0

    • 6.0

    • 12.0

    • 15.0

    Correct Answer
    A. 12.0
    Explanation
    Test 3

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  • 28. 

    Which of the following is NOT a property of acids?

    • They taste sour

    • They have a pH less than 7

    • They react with metals

    • They do not react with carbonates

    • They turn blue litmus red

    Correct Answer
    A. They do not react with carbonates
    Explanation
    Test 5

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  • 29. 

    What does the acronym SCUBA stand for?

    • Self contained underwater breathing apparatus

    • Self contained underwater breathing accessory

    • Self calibrated underwater breathing apparatus

    • Self calibrated underwater breathing accessory

    • Swimmer's calibrated underwater breathing apparatus

    Correct Answer
    A. Self contained underwater breathing apparatus
    Explanation
    Test 6

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  • 30. 

    Which of the following expresses standard atmospheric pressure?

    • 125 kPa

    • 100 atm

    • 1.00 atm

    • 96.7 kPa

    • 10.0 atm

    Correct Answer
    A. 1.00 atm
    Explanation
    Test 6

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  • 31. 

    According to the periodic law, chemical properties are repeated at a regular interval when

    • Elements are listed in order of their atomic radius

    • Elements are listed in order of their date of discovery

    • Families of elements are listed in order

    • Periods are arranged in order

    • Elements are arranged in order of increasing atomic number

    Correct Answer
    A. Elements are arranged in order of increasing atomic number
    Explanation
    Test 1

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  • 32. 

    The IUPAC name for P2I4 is

    • Phosphorus iodide

    • Diphosphorus tetraiodide

    • Tetraphosphorus diiodide

    • Phosphorus pentaiodide

    • Dipotassium tetraiodide

    Correct Answer
    A. Diphosphorus tetraiodide
    Explanation
    Test 2

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  • 33. 

    Which of the following always indicates that a chemical reaction has taken place?

    • Production of a gas

    • Absorption of heat

    • Change in colour

    • Appearance of a new substance

    • Production of heat

    Correct Answer
    A. Appearance of a new substance
    Explanation
    Test 2

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  • 34. 

    Which one of the following statements is a quantitative observation?

    • The freezing point of the clear and colourless solution was -40.5 degrees celsius

    • The reactant demonstrated a high degree of viscosity

    • The overall reaction was exothermic

    • The product was yellow in colour

    • A brown coloured gas evolved from the test tube

    Correct Answer
    A. The freezing point of the clear and colourless solution was -40.5 degrees celsius
    Explanation
    Test 3

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  • 35. 

    Determine the number of grams of HCl needed to react completely with 12.8g of aluminum, acording to the following equation: 2Al + 6HCl = 2AlCl3 + 3H2

    • 51.9g

    • 17.3g

    • 34.6g

    • 103.8g

    • 38.4g

    Correct Answer
    A. 51.9g
    Explanation
    Test 3

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  • 36. 

    Which of the following is the correct net ionic equation for barium sulphate?

    • Ba(aq) + S(aq) = BaS(s)

    • B(aq) + SO3(aq) = BSO3(s)

    • Be(aq) + SO4(aq) = BeSO4(s)

    • Ba(aq) + SO4(aq) = BaSO4(s)

    • None of the above

    Correct Answer
    A. Ba(aq) + SO4(aq) = BaSO4(s)
    Explanation
    Test 4

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  • 37. 

    Welders use two types of compressed gasses to produce very high temperatures to cut or weld metals. What are the two gasses used by welders to accomplish this?

    • Oxygen and hydrogen

    • Methane and oxygen

    • Acetylene and oxygen

    • Propane and oxygen

    • Acetylene and hydrogen

    Correct Answer
    A. Acetylene and oxygen
    Explanation
    Test 6

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  • 38. 

    Doubling the initial pressure while keeping the temperature constant causes the volume of a gas to go from 1000mL to 

    • 2000mL (double)

    • 500mL (halved)

    • 1000mL (constant)

    • About 900mL (slight decrease)

    • 1100mL (slight increase)

    Correct Answer
    A. 500mL (halved)
    Explanation
    Test 6

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  • 39. 

    The kinetic molecular theory includes all of the following except

    • Molecules attract one another

    • Particles are small compared to the volume they occupy

    • Molecules move in straight line motion

    • Molecules collide elastically with one another

    • Molecules collide elastically with surrounding objects

    Correct Answer
    A. Molecules move in straight line motion
    Explanation
    Test 2

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  • 40. 

    Hydrogen can be used as an alternative fuel for automobiles. Classify the following chemical reaction: 2H2 + O2 = 2H2O

    • Combustion reaction

    • Decomposition reaction

    • Single displacement

    • Double displacement

    • Simple decomposition

    Correct Answer
    A. Combustion reaction
    Explanation
    Test 2

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  • 41. 

    An isotope that has three times the mass of an atom of C-12 is most likely an atom of

    • Chlorine

    • Lithium

    • Calcium

    • Carbon

    • Fluorine

    Correct Answer
    A. Chlorine
    Explanation
    Test 3

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  • 42. 

    Which of the following is the correct representation for a hydronium ion?

    • H

    • H3O

    • H2O

    • H4O

    • None of the above

    Correct Answer
    A. H3O
    Explanation
    Test 5

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  • 43. 

    Which of the following is a practical use of radioisotopes?

    • Determining the age of old objects

    • Medical diagnosis

    • Production of electricity

    • All of the above

    • None of the above

    Correct Answer
    A. All of the above
    Explanation
    Test 1

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  • 44. 

    Potassium chloride and oxygen gas are formed upon heating potassium chlorate. The following balanced equation shows this decomposition process: 2KClO3 = 2KCl + 3O2The number of moles of KClO3 required to produce 5.0 mol of oxygen is

    • 1.0

    • 2.0

    • 3.0

    • 3.3

    • 5.0

    Correct Answer
    A. 3.3
    Explanation
    Test 3

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  • 45. 

    Cola soft drinks have a sucrose concentration of 11g/100mL. What mass of sucrose is present in a 355mL can of Cola?

    • 11g

    • 39g

    • 30g

    • 22g

    • 0.11g

    Correct Answer
    A. 39g
    Explanation
    Test 4

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  • 46. 

    Which of hte following is NOT a property of bases?

    • They react with active metals

    • They taste bitter and feel slippery

    • They have a pH greater than 7

    • They turn red litmus blue

    • They neutralize acids

    Correct Answer
    A. They react with active metals
    Explanation
    Test 5

    Rate this question:

  • 47. 

    Two atoms are isotopes if they have

    • Different atomic numbers

    • The same mass number, but different atomic numbers

    • The same number of protons and neutrons

    • The same number of electrons, but a different number of neutrons

    • The same atomic number, but a different mass number

    Correct Answer
    A. The same atomic number, but a different mass number
    Explanation
    Test 1

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  • 48. 

    The properties of elements repeat periodically if they are arranged by

    • Atomic mass

    • Atomic charge

    • Atomic number

    • Number of neutrons

    • Number of electrons

    Correct Answer
    A. Atomic number
    Explanation
    Test 1

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  • 49. 

    What is the formula for zinc chloride?

    • ZnCl

    • ZnCl2

    • Zn1Cl1

    • Zn1Cl2

    • Zn2Cl1

    Correct Answer
    A. ZnCl2
    Explanation
    Test 2

    Rate this question:

Zohra Sattar Waxali |PhD (Chemistry) |
Chemistry
Dr. Zohra Sattar Waxali earned her doctorate in chemistry and biochemistry from Northwestern University, specializing in the metallomes of cardiac cells and stem cells, and their impact on biological function. Her research encompasses the development of arsenoplatin chemotherapeutics, stapled peptide estrogen receptor inhibitors, and antimicrobial natural products.

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  • Jul 16, 2024
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