Chemistry Genius Quiz

Vast coverage, simple questions.

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1. Which of the following is the characteristic of catalyst?

  • The quantity of catalyst remains the same after the reaction.
  • Catalyst used only in solid form.
  • Catalyst increases the quantity of product.
  • Physical state of catalyst is unchanged during reaction.
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2. Which of the following is true regarding the reaction of adding chlorine water into lron(II) sulphate solution?

  • Green solution turns brown.
  • Iron(II) ions gain electrons.
  • Chlorine water is oxidised.
  • Iron(II) ions are reduced.

3. 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

4. The following statements are true about exothermic reactions except

  • the energy content of the products is lower than that of the reactants.
  • the formation of bond releases more energy than is required in the bond breaking
  • the formation of bond releases less energy than is required in the bond breaking
  • the reaction release heat to the surrounding

5. What is the volume of oxygen gas used if 5.5 g of propane is completely burnt in air? Molar Volume: 24 dm3 per mol (Tip: Write down the equation)

  • 15.0dm^3
  • 30.0dm^3
  • 9.0dm^3
  • 3.0dm^3

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