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 the maximum number of electrons the first electron shell can hold?

  1. A18
  2. B1
  3. C8
  4. D2
2.Easy

What is the change from a gas to a liquid called?

  1. AEvaporation
  2. BSublimation
  3. CCondensation
  4. DFreezing
3.Easy

What do an acid and a base produce when they neutralise each other?

  1. ACarbon dioxide only
  2. BA metal and hydrogen gas
  3. CA stronger acid
  4. DA salt and water
4.Medium

Which type of bond holds the two atoms together in a nitrogen molecule, N₂?

  1. AAn ionic bond
  2. BA single covalent bond
  3. CA triple covalent bond
  4. DA double covalent bond
5.Medium

What is a saturated solution?

  1. AA solution that conducts no electricity
  2. BA solution that holds as much solute as can dissolve at that temperature
  3. CA solution with only a small amount of solute dissolved in a lot of solvent
  4. DA solution that contains no solvent at all
6.Medium

What is the shape of a water molecule?

  1. ATetrahedral
  2. BBent
  3. CLinear
  4. DFlat triangle
7.Hard

A compound has the empirical formula CH₂ and a molar mass of 42 g/mol (C = 12, H = 1). What is its molecular formula?

  1. ACH₂
  2. BC₃H₆
  3. CC₂H₄
  4. DC₄H₈
8.Hard

2 mol of H₂ and 2 mol of O₂ are mixed and react as 2H₂ + O₂ → 2H₂O. Which reactant is limiting?

  1. AHydrogen, because 2 mol H₂ use only 1 mol O₂
  2. BOxygen, because there is less oxygen than hydrogen
  3. CWater, because it is the product
  4. DNeither, because the amounts are equal

Answer key

  1. 1. D · 2
  2. 2. C · Condensation
  3. 3. D · A salt and water
  4. 4. C · A triple covalent bond
  5. 5. B · A solution that holds as much solute as can dissolve at that temperature
  6. 6. B · Bent
  7. 7. B · C₃H₆
  8. 8. A · Hydrogen, because 2 mol H₂ use only 1 mol O₂

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