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 does the prefix "milli-" mean?

  1. AOne-thousandth (10⁻³)
  2. BOne-millionth (10⁻⁶)
  3. COne thousand (10³)
  4. DOne-hundredth (10⁻²)
2.简单

What does the double arrow (⇌) in a chemical equation show?

  1. AThe reaction needs a catalyst
  2. BThe reaction is reversible
  3. CThe reaction releases heat
  4. DThe reaction is very fast
3.简单

Which element makes up the largest share of the human body by mass?

  1. ACarbon
  2. BOxygen
  3. CNitrogen
  4. DHydrogen
4.中等

How many lone (non-bonding) pairs of electrons are on the oxygen atom in a water molecule?

  1. A1
  2. B4
  3. C2
  4. D0
5.中等

Why does the vapour pressure of a liquid increase as it is heated?

  1. AThe attractions between the molecules become stronger
  2. BThe liquid's volume decreases and squeezes out vapour
  3. CMore molecules have enough energy to escape into the gas phase
  4. DThe molecules become heavier and press harder on the surface
6.中等

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

  1. ACarboxylic acids
  2. BEsters
  3. CAlkanes
  4. DAlcohols
7.困难

Haemoglobin binds oxygen reversibly: Hb + O₂ ⇌ HbO₂. How does this equilibrium help deliver oxygen to tissues?

  1. ALow O₂ in tissues shifts it to the right, releasing oxygen
  2. BHigh O₂ in tissues shifts it to the left, absorbing oxygen
  3. CThe equilibrium does not change anywhere in the body
  4. DLow O₂ in tissues shifts it to the left, releasing oxygen
8.困难

为什么在结冰的道路上撒盐有助于冰融化？

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

答案

  1. 1. A · One-thousandth (10⁻³)
  2. 2. B · The reaction is reversible
  3. 3. B · Oxygen
  4. 4. C · 2
  5. 5. C · More molecules have enough energy to escape into the gas phase
  6. 6. D · Alcohols
  7. 7. D · Low O₂ in tissues shifts it to the left, releasing oxygen
  8. 8. B · 溶解的盐降低水的凝固点

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