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 formula of methane, the main gas in natural gas?

  1. ACH₄
  2. BCO₂
  3. CC₂H₆
  4. DCH₂
2.Easy

Where are the transition metals located on the periodic table?

  1. AIn group 1 on the far left
  2. BIn group 18 on the far right
  3. CIn the central block, groups 3 to 12
  4. DAbove the noble gases
3.Easy

What is a mole in chemistry?

  1. AAn amount of substance containing 6.02 × 10²³ particles
  2. BThe number of protons in an atom
  3. CThe volume of one litre of any gas
  4. DThe mass of a single carbon-12 atom
4.Medium

To which family of organic compounds does ethanol, C₂H₅OH, belong?

  1. AAlcohols
  2. BAlkanes
  3. CEsters
  4. DCarboxylic acids
5.Medium

Why does water boil at a lower temperature at the top of a high mountain?

  1. AGravity is weaker, so the molecules escape more easily
  2. BThe air is colder, so the water loses heat and boils sooner
  3. CThe air pressure is lower, so less vapour pressure is needed to boil
  4. DThere is less oxygen dissolved in the water up there
6.Medium

Nitric acid (HNO₃) reacts with potassium hydroxide (KOH). Which salt forms?

  1. APotassium nitrite, KNO₂
  2. BNitrogen hydroxide, NOH
  3. CPotassium nitrate, KNO₃
  4. DPotassium hydride, KH
7.Hard

Hyperbaric oxygen therapy places a patient in a chamber with oxygen at higher than normal pressure. Why does this raise the oxygen dissolved in blood plasma?

  1. AHigher pressure lowers body temperature, so the blood can hold much more gas
  2. BHigher pressure turns the oxygen into a liquid
  3. CHigher pressure makes red blood cells divide faster
  4. DGas solubility in a liquid increases with the partial pressure of the gas
8.Hard

When sugar dissolves in water, why is it not a chemical change?

  1. AThe sugar is destroyed and replaced by water
  2. BHeat is always released when sugar dissolves
  3. CSugar reacts with water to form a new compound
  4. DThe sugar molecules stay sugar and can be recovered

Answer key

  1. 1. A · CH₄
  2. 2. C · In the central block, groups 3 to 12
  3. 3. A · An amount of substance containing 6.02 × 10²³ particles
  4. 4. A · Alcohols
  5. 5. C · The air pressure is lower, so less vapour pressure is needed to boil
  6. 6. C · Potassium nitrate, KNO₃
  7. 7. D · Gas solubility in a liquid increases with the partial pressure of the gas
  8. 8. D · The sugar molecules stay sugar and can be recovered

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