护理入学考试化学练习卷（附答案）

免费可打印的护理入学考试化学练习卷：8 道题，从简单到考试水平，附答案。可打印或另存为 PDF。

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1.简单

氯化钠（食盐）靠哪种键结合在一起？

  1. A离子键
  2. B共价键
  3. C氢键
  4. D金属键
2.简单

Charles's law describes the relationship between which two properties of a gas, at constant pressure?

  1. ADensity and mass
  2. BPressure and number of moles
  3. CVolume and temperature
  4. DPressure and volume
3.简单

Which functional group is found in all alcohols?

  1. AAmino group (–NH₂)
  2. BCarboxyl group (–COOH)
  3. CCarbonyl group (C=O) only
  4. DHydroxyl group (–OH)
4.中等

Uranium-235 and uranium-238 both have 92 protons. How many more neutrons does an atom of uranium-238 have?

  1. A3
  2. B146
  3. C0
  4. D92
5.中等

下列哪项描述的是强酸？

  1. A它的 pH 高于 7
  2. B它只部分释放氢离子
  3. C它总是浓度很高
  4. D它在水中完全电离
6.中等

What is the oxidation number of an element in its uncombined (elemental) form, such as Fe or O₂?

  1. A−1
  2. B0
  3. CIt equals the group number
  4. D+1
7.困难

Frying an egg turns the clear egg white solid and white. What happens to the proteins?

  1. AThey are converted into fats
  2. BThey are burned to carbon dioxide and water
  3. CThey are denatured: their shape changes, but the peptide bonds stay intact
  4. DThey are hydrolysed, so the peptide bonds break into separate amino acids
8.困难

氯有两种常见同位素：氯-35（约 75%）和氯-37（约 25%）。它的平均原子质量是多少？

  1. A约 36.5
  2. B恰好 35
  3. C恰好 36
  4. D约 35.5

答案

  1. 1. A · 离子键
  2. 2. C · Volume and temperature
  3. 3. D · Hydroxyl group (–OH)
  4. 4. A · 3
  5. 5. D · 它在水中完全电离
  6. 6. B · 0
  7. 7. C · They are denatured: their shape changes, but the peptide bonds stay intact
  8. 8. D · 约 35.5

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