Chemistry for nursing entrance exams worksheet with answers

Which element has the symbol Fe?

1. AFluorine
2. BFermium
3. CFrancium
4. DIron

In a solution, what is the solvent?

1. AThe substance that is dissolved, usually present in the smaller amount
2. BAny solid that will not dissolve, however long it is stirred
3. CThe gas given off when a solid dissolves
4. DThe substance that does the dissolving, usually present in the larger amount

Which property is typical of bases?

1. AThey have a pH below 7
2. BThey turn blue litmus red
3. CThey feel slippery
4. DThey taste sour

An exothermic reaction is at equilibrium. What happens if the temperature is raised?

1. AThe equilibrium does not change
2. BThe equilibrium shifts toward the reactants
3. CThe equilibrium shifts toward the products, raising the yield
4. DThe reaction becomes endothermic

Which assumption is made about an ideal gas?

1. AIts particles are large, closely packed and strongly attracted
2. BIts particles lose energy in every collision
3. CIts particles stay still at room temperature
4. DIts particles have no attraction to each other

An atom of chlorine-37 has 17 protons. How many neutrons does it have?

1. A54
2. B37
3. C17
4. D20

An element in period 3 forms an oxide with the formula X₂O₃. Which element is X?

1. ASodium
2. BMagnesium
3. CPhosphorus
4. DAluminium

Carbon-12 and carbon-14 react in exactly the same way in chemical reactions. Why?

1. ACarbon-14 turns into carbon-12 before reacting
2. BThey have the same mass number
3. CThey have the same number of protons and electrons
4. DThey have the same number of neutrons