1.やさしい
Which quantity is the same for 1 mole of any substance?
- AThe number of atoms per molecule
- BThe volume as a liquid
- CThe number of particles
- DThe mass in grams
2.やさしい
Which functional group is found in all alcohols?
- AHydroxyl group (–OH)
- BAmino group (–NH₂)
- CCarboxyl group (–COOH)
- DCarbonyl group (C=O) only
3.やさしい
What kind of carbon–carbon bonds do alkanes contain?
- AAt least one double bond
- BAt least one triple bond
- COnly single bonds
- DIonic bonds
4.ふつう
温度を上げると、通常、反応速度はどうなるか。
- A反応が完全に止まる
- B反応速度に影響しない
- C反応速度が減る
- D反応速度が増す
5.ふつう
What colour is phenolphthalein indicator in a basic solution?
- AYellow
- BBlue
- CColourless
- DPink
6.ふつう
How does atomic radius change going down a group?
- AIt decreases
- BIt stays the same
- CIt increases
- DIt decreases, then increases
7.むずかしい
Methane burns as CH₄ + 2O₂ → CO₂ + 2H₂O. What mass of CO₂ (44 g/mol) forms from 16 g of CH₄ (16 g/mol)?
- A16 g
- B44 g
- C88 g
- D22 g
8.むずかしい
Why does atomic radius decrease from left to right across a period?
- AMore protons pull the electrons of the same outer shell closer
- BEach element adds a new electron shell
- CThe atoms lose electrons across the period
- DNeutrons push the electrons outward less strongly
解答
- 1. C · The number of particles
- 2. A · Hydroxyl group (–OH)
- 3. C · Only single bonds
- 4. D · 反応速度が増す
- 5. D · Pink
- 6. C · It increases
- 7. B · 44 g
- 8. A · More protons pull the electrons of the same outer shell closer
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