Solvents and solubility Quiz
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5 questions, one answer each
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1. Which attraction forms between water and Na⁺ ions in solution?
- A. Between the δ+ hydrogen of water and Na⁺
- B. Between the δ− oxygen of water and Na⁺
- C. A covalent bond between water and Na⁺
- D. A hydrogen bond between Na⁺ and water
2. Which compound is most soluble in water?
- A. Methanol, CH₃OH
- B. Hexane, C₆H₁₄
- C. 1-Chlorohexane, C₆H₁₃Cl
- D. Octane, C₈H₁₈
3. Why is 1-bromobutane only slightly soluble in water?
- A. It is an ionic compound
- B. Water is non-polar
- C. It cannot form hydrogen bonds with water
- D. Its molecules are non-polar
4. Which is the best solvent for dissolving the non-polar liquid octane?
- A. Water
- B. Aqueous sodium chloride
- C. Ethanoic acid in water
- D. Hexane
5. Which statement about ethanol and water is correct?
- A. They form ionic bonds so they mix
- B. They form hydrogen bonds with each other, so they mix completely
- C. They cannot form hydrogen bonds so they separate
- D. Ethanol is non-polar so it dissolves by London forces only