Subject-verb agreement complex cases quiz

🧪 Quick Study Guide

• ⚛️ In chemistry, the subject is often a compound or element, and the verb must agree in number.
• ⚖️ When dealing with chemical formulas, treat them as singular subjects unless otherwise specified. For example, "$H_2O$ is essential for life."
• 🌡️ Collective nouns like 'mixture' or 'solution' can be singular or plural depending on the context. If referring to the group as a whole, use a singular verb. If referring to the individual components, use a plural verb. Example: "The mixture is reacting." vs. "The components of the mixture are separated."
• 🔬 When two or more subjects are joined by 'and', use a plural verb. Example: "Hydrogen and oxygen are required to form water."
• 💡 When subjects are joined by 'or' or 'nor', the verb agrees with the subject closest to it. Example: "Neither the beaker nor the flasks are clean."

Practice Quiz

1. Which of the following sentences demonstrates correct subject-verb agreement?
   1. A mixture of ethanol and water are commonly used as a solvent.
   2. A mixture of ethanol and water is commonly used as a solvent.
   3. The mixture of ethanol and water have many uses.
   4. Ethanol and water, when mixed, is a useful solvent.
2. Select the sentence with correct subject-verb agreement:
   1. Neither the reactants nor the catalyst are at the correct temperature.
   2. Neither the reactants nor the catalyst is at the correct temperature.
   3. The reactants, as well as the catalyst, are ready.
   4. The reactants, as well as the catalyst, is ready.
3. Choose the option with proper subject-verb agreement:
   1. Chromium and nickel is often alloyed to create stainless steel.
   2. Chromium and nickel are often alloyed to create stainless steel.
   3. Chromium, along with nickel, are corrosion-resistant.
   4. Neither chromium nor nickel are magnetic.
4. Identify the correctly written sentence:
   1. $NaCl$ are an ionic compound.
   2. $NaCl$ is an ionic compound.
   3. $NaCl$ are composed of sodium and chlorine ions.
   4. $NaCl$, along with other salts, is essential for many biological processes.
5. Which sentence has correct subject-verb agreement?
   1. The solution of acids are prepared carefully.
   2. The solution of acids is prepared carefully.
   3. Each of the acids require special handling.
   4. Acids, when concentrated, is dangerous.
6. Which of the following is grammatically correct?
   1. The data from the experiment shows a clear trend.
   2. The data from the experiment show a clear trend.
   3. Each data point are significant.
   4. These data is crucial for our understanding.
7. Select the sentence with correct subject-verb agreement:
   1. Neither the test tube nor the beakers is clean.
   2. Neither the test tube nor the beakers are clean.
   3. The equipment, including the glassware, are sterilized.
   4. The glassware, along with the solutions, is ready.