1. Addition reaction occurs due to presence of:
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2. Zara is studying the combustion of alkanes. She knows that alkanes are used as fuels. Which of the following is a clean-burning fuel?
3. Fatima is studying water pollution from agriculture. She knows that fertilizers can run off into water bodies. What is a way to prevent fertilizer runoff?
4. Sam is studying the halogenation of alkanes. She knows that chlorination of methane can produce a mixture of products. What is the final product when all hydrogen atoms are substituted by chlorine?
5. Structural isomers differ in their:
6. Ahmed is learning about organic compounds in his chemistry class. He understands that organic compounds contain carbon. Which of the following is an organic compound?
7. Ahmed is studying the properties of water. He knows that water is a polar molecule and can dissolve many substances. What property of water makes it a good solvent?
8. Hina is studying the classification of organic compounds. She learns that compounds can be classified as acyclic or cyclic. Which of the following is a cyclic compound?
9. Which gas is released during respiration?
10. George is learning about water pollution. He knows that plastics are a major pollutant in water bodies. What is a disadvantage of plastics in water?