1. Nadia is studying closed chain compounds. She learns that closed chain compounds contain rings. Which of the following is a closed chain compound?
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2. Vera is studying the functional group of aldehydes. She learns that aldehydes contain a carbonyl group bonded to a hydrogen. What is the general formula for aldehydes?
3. Xia is learning about air quality indices. She understands that the AQI is used to communicate air quality. What does a higher AQI indicate?
4. Which branch is essential for food digestion studies?
5. Victor is studying the melting points of metals and non-metals. He notes that most metals have high melting points, while non-metals have lower melting points. Which of the following has a high melting point?
6. Fertilizers are produced with the help of:
7. Which reaction involves transfer of electrons?
8. At equilibrium, the rate of forward reaction is:
9. David is learning about carbon dioxide. He knows that CO2 is a greenhouse gas. Which human activity is the largest contributor to increased CO2 levels?
10. Which activity increases water pollution?