1.やさしい
What is the SI base unit of mass?
- ANewton
- BGram
- CPound
- DKilogram
2.やさしい
What does organic chemistry study?
- ACompounds based on carbon
- BOnly compounds found in plants
- CCompounds made of metals
- DOnly the noble gases
3.やさしい
粒子が決まった形と決まった体積をもつ物質の状態はどれか。
- A液体
- B気体
- Cプラズマ
- D固体
4.ふつう
Why must temperatures be in kelvin in gas law calculations?
- AThe kelvin scale has smaller degrees, which gives more precise answers
- BKelvin values are always below 100
- CGas volume and pressure are proportional to the absolute temperature
- DCelsius can only be used for liquids
5.ふつう
塩素37の原子は陽子を 17 個もつ。中性子はいくつか。
- A37
- B54
- C20
- D17
6.ふつう
酸素ガスO₂ の分子にある結合はどの種類か。
- A極性のある共有単結合
- Bイオン結合
- C無極性の共有二重結合
- D金属結合
7.むずかしい
Uranium-238 (atomic number 92) undergoes alpha decay. Which nucleus is formed?
- APlutonium-242 (atomic number 94)
- BProtactinium-234 (atomic number 91)
- CThorium-234 (atomic number 90)
- DThorium-238 (atomic number 90)
8.むずかしい
Cells oxidise glucose to CO₂ and water, as burning glucose does. How does cellular respiration differ from burning?
- AIt releases the energy in many small, enzyme-controlled steps
- BIt does not need oxygen at any stage
- CIt produces different products from burning
- DIt releases much more total energy than burning the same glucose
解答
- 1. D · Kilogram
- 2. A · Compounds based on carbon
- 3. D · 固体
- 4. C · Gas volume and pressure are proportional to the absolute temperature
- 5. C · 20
- 6. C · 無極性の共有二重結合
- 7. C · Thorium-234 (atomic number 90)
- 8. A · It releases the energy in many small, enzyme-controlled steps
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