10-item Test On Formula Writing

Reviewed by Editorial Team
The ProProfs editorial team is comprised of experienced subject matter experts. They've collectively created over 10,000 quizzes and lessons, serving over 100 million users. Our team includes in-house content moderators and subject matter experts, as well as a global network of rigorously trained contributors. All adhere to our comprehensive editorial guidelines, ensuring the delivery of high-quality content.
Learn about Our Editorial Process
| By Mcabana
Mcabana
Community Contributor
Quizzes Created: 5 | Total Attempts: 20,200
| Attempts: 2,304
Quiz Flashcard
SettingsSettings
Please wait...
  • 1/10 Questions

    Carbon tetrachloride

    • CaCl4
    • CCl4
    • Ca4Cl
    • C4Cl
Please wait...
About This Quiz

This 10-item test will measure how well you understood the rules in writing down the correct chemical formulas of compounds. You have 5 minutes to complete the test. Identify the correct chemical formula of the given compound. Tick the letter that corresponds to your answer. *Numbers in the chemical formulas are supposed to be See moretreated as subscripts.

10-item Test On Formula Writing - Quiz

Quiz Preview

  • 2. 

    Copper (II) oxide 

    • CuO

    • Cu2O

    • CuO2

    • Cu2O2

    Correct Answer
    A. CuO
    Explanation
    Copper (II) oxide is represented by the chemical formula CuO. The Roman numeral II in the name indicates that copper has a +2 oxidation state in this compound. The formula Cu2O represents copper (I) oxide, where copper has a +1 oxidation state. CuO2 and Cu2O2 are incorrect formulas and do not represent any known compounds. Therefore, the correct answer is CuO.

    Rate this question:

  • 3. 

    Sodium hypochlorite

    • NaClO4

    • NaClO3

    • NaClO2

    • NaClO

    Correct Answer
    A. NaClO
    Explanation
    Sodium hypochlorite is represented by the formula NaClO. The formula indicates that it is composed of one sodium atom (Na), one chlorine atom (Cl), and one oxygen atom (O). The subscript of 1 for each element indicates that there is only one atom of each element in the compound. Therefore, the correct answer is NaClO.

    Rate this question:

  • 4. 

    Aluminum hydroxide

    • Al(OH)3

    • Al(OH)2

    • AlOH

    • AlO

    Correct Answer
    A. Al(OH)3
    Explanation
    The correct answer is Al(OH)3 because aluminum hydroxide is a compound that consists of one aluminum atom bonded with three hydroxide ions. The chemical formula Al(OH)3 accurately represents this composition, while the other options do not. Al(OH)2 represents a compound with only two hydroxide ions, AlOH represents a compound with only one hydroxide ion, and AlO represents a compound without any hydroxide ions. Therefore, Al(OH)3 is the correct formula for aluminum hydroxide.

    Rate this question:

  • 5. 

    Copper (II) sulfate pentahydrate

    • Cu2SO4 . 5H2O

    • CuSO . 5H2O

    • CuSO4 . 5H2O

    • Cu2(SO4)2 .5H2O

    Correct Answer
    A. CuSO4 . 5H2O
    Explanation
    The correct answer is CuSO4 . 5H2O. This is because the compound is copper (II) sulfate pentahydrate, which is represented by the chemical formula CuSO4 . 5H2O. The formula Cu2(SO4)2 .5H2O is incorrect because it suggests that there are two copper atoms and two sulfate ions, which is not the case.

    Rate this question:

  • 6. 

    Potassium permanganate

    • KMnO5

    • KMnO4

    • KMnO3

    • KMnO2

    Correct Answer
    A. KMnO4
    Explanation
    Potassium permanganate is represented by the chemical formula KMnO4. The correct answer, KMnO4, matches the given chemical formula. The other options, KMnO5, KMnO3, and KMnO2, do not match the correct chemical formula for potassium permanganate.

    Rate this question:

  • 7. 

    Carbon dioxide

    • C2O

    • CO3

    • CO2

    • CO

    Correct Answer
    A. CO2
    Explanation
    The correct answer is CO2. Carbon dioxide is a chemical compound composed of one carbon atom bonded to two oxygen atoms. The formula CO2 represents this composition accurately. The other options provided in the question, C2O, CO3, and CO, do not correctly represent the composition of carbon dioxide.

    Rate this question:

  • 8. 

    Hydrochloric acid

    • HClO4

    • HClO

    • HClO3

    • HCl

    Correct Answer
    A. HCl
    Explanation
    Hydrochloric acid is represented by the chemical formula HCl, which matches the given answer. HClO4, HClO, and HClO3 are not hydrochloric acid, but rather perchloric acid, hypochlorous acid, and chloric acid respectively. Therefore, the correct answer is HCl.

    Rate this question:

  • 9. 

    Hyposulfurous acid

    • H2SO4

    • H2SO5

    • H2SO3

    • H2SO2

    Correct Answer
    A. H2SO2
    Explanation
    H2SO2 is the correct answer because it corresponds to the compound hyposulfurous acid. The formula H2SO2 indicates that the acid contains two hydrogen atoms and one sulfur atom. The prefix "hypo-" suggests that the acid has one less oxygen atom than the related sulfuric acid (H2SO4). Therefore, H2SO2 is the appropriate formula for hyposulfurous acid.

    Rate this question:

  • 10. 

    Ammonium acetate

    • NH4C2H3O2

    • NH4(C2H3O2)2

    • (NH4)2C2H3O2

    • (NH4)2(C2H3O2)2

    Correct Answer
    A. NH4C2H3O2
    Explanation
    Ammonium acetate is a compound that consists of the ammonium ion (NH4+) and the acetate ion (C2H3O2-). The formula NH4C2H3O2 represents one ammonium ion and one acetate ion, which is the correct formula for ammonium acetate. The other options either have incorrect subscripts or include multiple ammonium or acetate ions, which would result in a different compound.

    Rate this question:

Quiz Review Timeline (Updated): May 22, 2024 +

Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.

  • Current Version
  • May 22, 2024
    Quiz Edited by
    ProProfs Editorial Team
  • Sep 28, 2009
    Quiz Created by
    Mcabana

Related Topics

Recent Quizzes

Test Your Skills With a Linear Equation in Three Variables Quiz Test Your Skills With a Linear Equation in Three Variables Quiz
Logarithms Quiz: Challenge Your Exponentiation Skills Logarithms Quiz: Challenge Your Exponentiation Skills
Master Subtraction: Subtraction Quiz For Beginners Master Subtraction: Subtraction Quiz For Beginners
How Many Eighths? Quiz: Test Your Calculation Skills How Many Eighths? Quiz: Test Your Calculation Skills
How Many Acres? Quiz: Test Your Measurement Skills How Many Acres? Quiz: Test Your Measurement Skills
Take the Ultimate How Many Meters? Quiz Take the Ultimate How Many Meters? Quiz
How Many Centimeters? Quiz: Measure Your Skills How Many Centimeters? Quiz: Measure Your Skills
Take The Challenge: How Many Eggs? Quiz Take The Challenge: How Many Eggs? Quiz
How Many Square Feet? Quiz: Test Your Measurement Skills How Many Square Feet? Quiz: Test Your Measurement Skills

Featured Quizzes

Fursona Quiz: Know Your True Animal Spirit Fursona Quiz: Know Your True Animal Spirit
First 20 Elements Of The Periodic Table Quiz First 20 Elements Of The Periodic Table Quiz
Social Science Quiz: Questions and Answers Social Science Quiz: Questions and Answers
Physical Education Quiz Questions And Answers Physical Education Quiz Questions And Answers
Which Phobia Do I Have? Which Phobia Do I Have?
Ronaldo quiz: How well do you know Cristiano Ronaldo? Ronaldo quiz: How well do you know Cristiano Ronaldo?
Advertisement
×

Wait!
Here's an interesting quiz for you.

We have other quizzes matching your interest.