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

Which of these is a polyatomic ion?

  1. ASodium, Na⁺
  2. BSulfate, SO₄²⁻
  3. CChloride, Cl⁻
  4. DOxide, O²⁻
2.简单

What kind of carbon–carbon bonds do alkanes contain?

  1. AAt least one triple bond
  2. BIonic bonds
  3. CAt least one double bond
  4. DOnly single bonds
3.简单

What is an alpha particle made of?

  1. A2 protons and 2 neutrons
  2. B1 proton and 1 electron
  3. CA single high-energy electron
  4. DPure electromagnetic energy
4.中等

缓冲溶液有什么作用？

  1. A加快中和反应，使 pH 迅速达到恰好 7
  2. B把任何酸变成强碱
  3. C加入少量酸或碱时抵抗 pH 的变化
  4. D使溶液的温度保持恒定
5.中等

When the diaphragm contracts and the chest cavity gets bigger, what happens to the air pressure inside the lungs?

  1. AIt does not change
  2. BIt rises, so air flows in
  3. CIt falls, so air flows in
  4. DIt falls, so air flows out
6.中等

A patient's arterial blood pH is 7.25. How is this described?

  1. AAcidosis
  2. BNeutral
  3. CAlkalosis
  4. DNormal
7.困难

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

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

A nurse wipes a patient's arm with an alcohol swab and the patient says the skin feels cold. What explains this?

  1. AThe alcohol blocks the skin's nerve endings for warmth
  2. BThe alcohol reacts with the skin in an endothermic chemical reaction
  3. CThe alcohol absorbs heat from the skin as it evaporates
  4. DThe alcohol is stored at a much lower temperature than the room

答案

  1. 1. B · Sulfate, SO₄²⁻
  2. 2. D · Only single bonds
  3. 3. A · 2 protons and 2 neutrons
  4. 4. C · 加入少量酸或碱时抵抗 pH 的变化
  5. 5. C · It falls, so air flows in
  6. 6. A · Acidosis
  7. 7. A · They are denatured: their shape changes, but the peptide bonds stay intact
  8. 8. C · The alcohol absorbs heat from the skin as it evaporates

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