C1 OCR

Quiz on some of the key elements of C1 

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1. What is the word equation for an ester?

  • alcohol + oxygen----> ester + water
  • carbon dioxide+ acid----> ester + water
  • alcohol + acid---> ester + water
  • alcohol + acid----> ester + oxygen
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Other questions in this quiz

2. How does perfume evaporate?

  • The particles have strong attractions and low amount of kinetic energy
  • They have weak attractions so not attracted to other molecules which they need sufficient kinetic energy for
  • The liquid dissolves into the skin
  • The particles dissolve on to the skin

3. What is a solution?

  • A mixture of a solvent and a solute that doesn't separate out
  • A mixture of a solute with a liquid
  • A mixture of a solid and a liquid that becomes a gas
  • A mixture of a compound and a solute

4. Why are potatoes easier to digest when cooked?

  • Because the cell membrane ruptures so loss or rigid structure and the starch grain swells and spread out
  • Because the cell wall ruptures so loss or rigid structure and the starch grain swells and spread out
  • Because the heat breaks down the intermolecular forces
  • Because the cell wall ruptures so loss or rigid structure and the starch grain break and dissolve

5. What is a colloid?

  • Where the particles travel from a high concentration to a low concentration
  • A type of metal
  • Where particles are mixed and dispersed with particles in a liquid but not dissolved
  • A mix of a solid and a liquid

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