Chemistry for nursing entrance exams worksheet with answers

Which property is typical of bases?

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

What is the formula of sulfuric acid?

1. AHNO₃
2. BH₂SO₃
3. CH₂SO₄
4. DHCl

Which technique is used to separate the different coloured dyes in an ink?

1. AMagnetism
2. BChromatography
3. CFiltration
4. DDistillation of the ink

What are hydrogen bonds?

1. ABonds inside the nucleus of hydrogen
2. BIonic bonds between hydrogen ions and metals
3. CCovalent bonds between two hydrogen atoms in H₂
4. DAttractions between a hydrogen on one molecule and an O, N or F atom on another

What charge do group 16 elements such as oxygen and sulfur usually have as ions?

1. A2+
2. B2−
3. C6+
4. D1−

Glucose has the molecular formula C₆H₁₂O₆. What is its empirical formula?

1. AC₂H₄O₂
2. BC₆H₁₂O₆
3. CCHO
4. DCH₂O

Methane burns as CH₄ + 2O₂ → CO₂ + 2H₂O. What mass of CO₂ (44 g/mol) forms from 16 g of CH₄ (16 g/mol)?

1. A44 g
2. B16 g
3. C88 g
4. D22 g

Diamond is extremely hard and has a very high melting point. Which explanation is correct?

1. AIt is held together by ionic bonds between C⁺ and C⁻ ions
2. BEach carbon is covalently bonded to four others in a giant network
3. CIt contains delocalised electrons like a metal
4. DIt is made of separate small molecules with strong forces between them