Chemistry for nursing entrance exams worksheet with answers

Free printable Chemistry for nursing entrance exams worksheet: 8 problems from easy to exam level, with an answer key. Print it or save it as a PDF.

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1.Easy

What is a dilute solution?

  1. AOne with no solvent at all
  2. BOne with a small amount of solute in a lot of solvent
  3. COne in which the solute has reacted with the solvent
  4. DOne with a large amount of solute in a little solvent
2.Easy

What is an electrolyte?

  1. AA gas that dissolves in blood
  2. BA substance that forms ions and conducts electricity when dissolved in water
  3. CA metal that conducts electricity as a solid
  4. DA substance that dissolves as whole molecules without forming any ions
3.Easy

What is a single covalent bond?

  1. AOne pair of electrons shared between two atoms
  2. BTwo pairs of electrons shared between two atoms
  3. COne electron transferred from one atom to another
  4. DThe attraction between two oppositely charged ions
4.Medium

Why does stirring help a solid dissolve faster?

  1. AIt raises the temperature of the solvent by friction a great deal
  2. BIt turns the solid into a liquid
  3. CIt brings fresh solvent into contact with the solid's surface
  4. DIt increases the amount of solute that can dissolve in total
5.Medium

On an energy diagram, the products are at a lower energy than the reactants. What kind of reaction is shown?

  1. ANuclear
  2. BReversible only
  3. CExothermic
  4. DEndothermic
6.Medium

What is the molar mass of sulfuric acid, H₂SO₄ (H = 1, S = 32, O = 16 g/mol)?

  1. A98 g/mol
  2. B49 g/mol
  3. C96 g/mol
  4. D50 g/mol
7.Hard

Which of these is a neutralisation reaction?

  1. ACH₄ + 2O₂ → CO₂ + 2H₂O
  2. BH₂SO₄ + 2KOH → K₂SO₄ + 2H₂O
  3. C2H₂O → 2H₂ + O₂
  4. DZn + CuSO₄ → ZnSO₄ + Cu
8.Hard

An element has the electron arrangement 2, 8, 7. Which ion will it most likely form?

  1. AA 7+ ion
  2. BA 1− ion
  3. CA 2− ion
  4. DA 1+ ion

Answer key

  1. 1. B · One with a small amount of solute in a lot of solvent
  2. 2. B · A substance that forms ions and conducts electricity when dissolved in water
  3. 3. A · One pair of electrons shared between two atoms
  4. 4. C · It brings fresh solvent into contact with the solid's surface
  5. 5. C · Exothermic
  6. 6. A · 98 g/mol
  7. 7. B · H₂SO₄ + 2KOH → K₂SO₄ + 2H₂O
  8. 8. B · A 1− ion

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