Chemistry Genius Quiz

Vast coverage, simple questions.

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1. The following statements are true about exothermic reactions except

  • the formation of bond releases less energy than is required in the bond breaking
  • the formation of bond releases more energy than is required in the bond breaking
  • the reaction release heat to the surrounding
  • the energy content of the products is lower than that of the reactants.
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2. Orange Juice - Ingredients: Sulphur dioxide, ascorbic acid, octyl ethanoate, tartrazine - Which of the following is used as a colouring?

  • Sulphur dioxide
  • Octyl ethanoate
  • Tartrazine
  • Ascorbic acid

3. The relative atomic mass of an element is defined as the number of times one atom of the element is heavier than 1/12 of the mass of an atom of isotope Q. What is isotope Q ?

  • Oxygen-16
  • Carbon-12
  • Helium-4
  • Hydrogen-1

4. Which of the following compound is a hydrocarbon?

  • Propan-2-ol
  • Ethanoic Acid
  • 2-methylbut-1,3-diene
  • Ethyl ethanoate

5. What is the product of water and pentyl ethanoate under acidic conditions?

  • Ethanoic acid, two equivalents
  • Ethanoic acid and pentanol
  • Butanol and water
  • Pentanol, two equivalents
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