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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姓名: ____________________   日期: ____________

1.简单

What is a dilute solution?

  1. AOne with a large amount of solute in a little solvent
  2. BOne in which the solute has reacted with the solvent
  3. COne with a small amount of solute in a lot of solvent
  4. DOne with no solvent at all
2.简单

What is the name of the polyatomic ion NH₄⁺?

  1. ANitrate
  2. BAmmonium
  3. CAmmonia
  4. DNitride
3.简单

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

  1. AMelting
  2. BEvaporation
  3. CFreezing
  4. DCondensation
4.中等

In the reaction Zn + Cu²⁺ → Zn²⁺ + Cu, which species loses electrons?

  1. AZn
  2. BZn²⁺
  3. CCu²⁺
  4. DCu
5.中等

Water can act as an acid in some reactions and as a base in others. What is such a substance called?

  1. ANeutral
  2. BIsotonic
  3. CAmphoteric
  4. DSaturated
6.中等

A plastic block has a density of 0.8 g/cm³. What happens when it is placed in water (density 1.0 g/cm³)?

  1. AIt stays suspended halfway down
  2. BIt floats
  3. CIt sinks
  4. DIt dissolves
7.困难

血液被缓冲体系保持在 pH 7.4 附近。如果额外的酸（H⁺）进入血液，碳酸氢根离子（HCO₃⁻）会怎样？

  1. A它把 H⁺ 结合成碳酸，所以 pH 只略有下降
  2. B它把 pH 提高到 14
  3. C它变成氯化钠
  4. D它自己释放出更多的 H⁺ 离子，使血液更酸
8.困难

为什么在结冰的道路上撒盐有助于冰融化？

  1. A盐提高水的凝固点
  2. B盐使冰的密度变大而沉入路面
  3. C盐与冰反应并释放大量热
  4. D溶解的盐降低水的凝固点

答案

  1. 1. C · One with a small amount of solute in a lot of solvent
  2. 2. B · Ammonium
  3. 3. C · Freezing
  4. 4. A · Zn
  5. 5. C · Amphoteric
  6. 6. B · It floats
  7. 7. A · 它把 H⁺ 结合成碳酸，所以 pH 只略有下降
  8. 8. D · 溶解的盐降低水的凝固点

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