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Quizzes > Quizzes for Business > Education

General Knowledge and Chemistry Assessment Quiz

Sharpen Your Chemistry and Trivia Knowledge Today

Difficulty: Moderate
Questions: 20
Learning OutcomesStudy Material
Colorful paper art depicting elements of general knowledge and chemistry for a trivia quiz

Ready to challenge yourself with an engaging General Knowledge Assessment Quiz ? This free, interactive test blends trivia with core chemistry concepts in a fun format. Ideal for students and educators aiming to evaluate their grasp of scientific facts, it offers personalized feedback and insights. All questions are fully editable in our quizzes editor, so you can tailor the experience to your needs. Dive into the Chemistry Knowledge Assessment Quiz and discover where you excel!

Which gas do plants absorb during photosynthesis?
Oxygen
Nitrogen
Carbon dioxide
Hydrogen
Plants use carbon dioxide from the air along with sunlight to produce glucose and oxygen during photosynthesis. Carbon dioxide is the essential input gas for the process, while oxygen is a byproduct.
Which element has the atomic number 1?
Hydrogen
Helium
Beryllium
Lithium
Atomic number represents the number of protons in an atom's nucleus. Hydrogen has one proton, giving it atomic number 1.
What is the chemical formula for water?
H2O
NaCl
CH4
CO2
Water consists of two hydrogen atoms bonded to one oxygen atom, giving it the molecular formula H2O. Other formulas listed represent different compounds.
Which state of matter has a definite volume but no definite shape?
Plasma
Solid
Liquid
Gas
Liquids have a fixed volume because the molecules are close together but no fixed shape, allowing them to flow and adopt the shape of their container. Solids have both definite shape and volume.
What pH value is considered neutral on the pH scale?
14
0
7
3
A pH of 7 is neutral, meaning the concentration of hydrogen ions equals that of hydroxide ions. Values below 7 are acidic and above 7 are basic.
Which element is classified as a noble gas?
Nitrogen
Fluorine
Oxygen
Neon
Noble gases occupy group 18 of the periodic table and have full valence electron shells. Neon is one of these inert elements.
What is the approximate molar mass of carbon dioxide (CO2)?
22 g/mol
18 g/mol
44 g/mol
28 g/mol
Carbon dioxide's molar mass is calculated as 12.01 (C) + 2 - 16.00 (O) ≈ 44 g/mol. This is the sum of the atomic masses of its constituent atoms.
Which of the following compounds is held together primarily by ionic bonds?
Water
Methane
Sodium chloride
Carbon dioxide
Ionic bonds form between metals and nonmetals; sodium donates an electron to chlorine to form Na+ and Cl - in sodium chloride. The other compounds are covalently bonded.
According to periodic table trends, atomic radius generally increases in which direction?
Up a group and from left to right
Down a group and from right to left
Up a group and from right to left
Down a group and from left to right
Atomic radius grows down a group due to added electron shells, and across a period it increases from right to left due to lower effective nuclear charge pulling electrons outward less strongly.
Which set of coefficients balances the reaction: H2 + O2 ' H2O?
2 H2 + O2 ' 2 H2O
H2 + 2 O2 ' 2 H2O
2 H2 + 2 O2 ' 2 H2O
H2 + O2 ' H2O2
Balancing H2 and O2 to form H2O requires two molecules of hydrogen and one of oxygen to produce two water molecules, yielding 2 H2 + O2 ' 2 H2O.
Which metal is known to be the most reactive among the options?
Copper
Sodium
Iron
Gold
Sodium is an alkali metal with one valence electron, making it highly reactive compared to transition metals like copper, gold, and iron.
Which element is the most abundant in Earth's crust by mass?
Iron
Oxygen
Silicon
Aluminum
Oxygen makes up roughly 46% of the Earth's crust by weight, primarily bonded with other elements like silicon and aluminum to form various minerals.
The reaction 2HCl + Mg ' MgCl2 + H2 represents which type of reaction?
Single displacement reaction
Double displacement reaction
Decomposition reaction
Synthesis reaction
In a single displacement reaction, an element (Mg) replaces another (H) in a compound, forming MgCl2 and releasing H2 gas.
Which element has the highest electronegativity on the Pauling scale?
Nitrogen
Oxygen
Fluorine
Chlorine
Electronegativity increases across a period and up a group, peaking with fluorine, which has the strongest tendency to attract electrons of any element.
Which particle in an atom has no electric charge?
Positron
Proton
Neutron
Electron
Neutrons are neutral particles found in the nucleus of an atom. Protons carry a positive charge and electrons a negative charge.
Which of the following oxides is amphoteric?
Sodium chloride (NaCl)
Sulfur dioxide (SO2)
Carbon monoxide (CO)
Aluminum oxide (Al2O3)
Aluminum oxide can react with both acids and bases, showing amphoteric behavior. The other oxides listed do not react in both acidic and basic conditions.
In a galvanic cell, which electrode is the positive terminal?
Cathode
Anode
Salt bridge
Electrolyte
In a galvanic cell, reduction occurs at the cathode, which gains electrons and serves as the positive terminal. Oxidation occurs at the anode, the negative terminal.
What is the pH of a 0.001 M HCl solution?
11
-3
3
1
HCl is a strong acid that fully dissociates, so [H❺]=0.001 M. The pH is calculated as -log(0.001) which equals 3.
What is the hybridization of each carbon atom in ethene (C2H4)?
sp2
sp3d
sp
sp3
Each carbon in ethene forms three sigma bonds and one pi bond, resulting in sp2 hybridization and a trigonal planar geometry around each carbon.
In potassium dichromate (K2Cr2O7), what is the oxidation state of chromium?
+2
+6
+3
+4
Dichromate has an overall charge of -2; each O is -2, so seven oxygens contribute -14. Balancing with potassium ions (+2 - 1) gives Cr oxidation states that sum to +12 for two Cr atoms, so each is +6.
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Learning Outcomes

  1. Analyse key chemical concepts within general knowledge contexts
  2. Identify elements and compounds based on their properties
  3. Apply periodic table trends to solve chemistry problems
  4. Evaluate reaction processes and balance chemical equations
  5. Demonstrate understanding of scientific trivia and facts
  6. Master critical thinking by connecting chemistry to real-world scenarios

Cheat Sheet

  1. Law of Conservation of Mass - Every chemical reaction must balance the total mass of reactants and products, so nothing mysteriously appears or disappears. Understanding this principle is crucial when you're juggling atoms to balance equations like CH₄ + 2O₂ → CO₂ + 2H₂O. Balancing Chemical Equations Guide
  2. Master Balancing Chemical Equations - Balancing is all about tweaking coefficients, not subscripts, to ensure each element has the same atom count on both sides. Practice with equations like N₂ + 3H₂ → 2NH₃ until it becomes second nature. Step-by-Step Balancing Tutorial
  3. Recognize Periodic Trends - Elements show predictable patterns across periods and down groups, such as decreases in atomic radius across a row and increases down a column. Spotting trends in ionization energy and electronegativity helps you predict how elements will behave in reactions. Periodic Trends Explained
  4. Identify Elements vs. Compounds - An element is a pure substance made of one type of atom (like O₂), whereas a compound combines two or more elements chemically (like H₂O). Distinguishing them builds the foundation for naming, balancing, and predicting properties. Elements and Compounds Overview
  5. Apply Periodic Table Insights - Use trends like electronegativity and atomic size to forecast bond types and reactivity - high electronegativity often means an atom will hog electrons in a bond. This strategy lets you sketch reaction pathways before you even write the full equation. Deep Dive into Periodic Behavior
  6. Evaluate Reaction Processes - Chemical reactions fall into categories like synthesis, decomposition, and combustion, each with its own "signature." Knowing the type of reaction helps you predict products and write balanced equations more efficiently. Types of Chemical Reactions
  7. Memorize Common Polyatomic Ions - Keep ions like sulfate (SO₄²❻), nitrate (NO₃❻), and ammonium (NH₄❺) at your fingertips to speed up equation writing and balancing. Flashcards or charts can turn this task into a quick daily quiz. Polyatomic Ion Reference
  8. Understand Chemical Nomenclature - Naming rules for ionic and covalent compounds let you translate formulas into words and back again without guessing. For example, NaCl is sodium chloride and CO₂ is carbon dioxide - learn the patterns and it clicks. Guide to Chemical Naming
  9. Practice Stoichiometry - Use balanced equations to calculate reactant and product amounts by applying mole ratios from the coefficients. This "chemistry math" turns lab measurements into real-world quantities you can weigh or measure. Stoichiometry Worked Examples
  10. Connect Chemistry to Everyday Life - From baking soda in volcano demos to acid-base reactions in your stomach, real-world examples make abstract principles stick. Relating theory to daily experiences helps you remember and enjoy chemistry. Chemistry in the Real World
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