1.やさしい
地球の空気の大部分を占める気体はどれか。
- A二酸化炭素
- B酸素
- C水素
- D窒素
2.やさしい
Which type of radiation is the most penetrating?
- AGamma rays
- BAlpha particles
- CBeta particles
- DThey are all equally penetrating
3.やさしい
食塩水は、どの種類の物質の例か。
- A不均一な混合物
- B純粋な元素
- C均一な混合物(溶液)
- D化合物
4.ふつう
When two monomers join to form a larger molecule and a water molecule is released, what is the reaction called?
- ANeutralisation
- BHydrolysis (splitting with water)
- CCombustion
- DCondensation (dehydration synthesis)
5.ふつう
What is the conjugate base of nitric acid, HNO₃?
- ANO₂⁻
- BNO₃⁻
- CH₂NO₃⁺
- DHNO₂
6.ふつう
Rubbing alcohol evaporates faster than water at room temperature. What does this suggest?
- AIts molecules are heavier than water molecules
- BIts intermolecular forces are weaker than water's
- CIt has a higher boiling point than water
- DIts intermolecular forces are stronger than water's
7.むずかしい
Which list puts 0.1 M solutions of HCl, acetic acid (CH₃COOH) and NaCl in order of increasing pH?
- AHCl < CH₃COOH < NaCl
- BHCl < NaCl < CH₃COOH
- CCH₃COOH < HCl < NaCl
- DNaCl < CH₃COOH < HCl
8.むずかしい
Methane (CH₄) has four bonding pairs and no lone pairs on carbon. What is its shape?
- ASquare planar
- BTetrahedral
- CTrigonal pyramidal
- DBent
解答
- 1. D · 窒素
- 2. A · Gamma rays
- 3. C · 均一な混合物(溶液)
- 4. D · Condensation (dehydration synthesis)
- 5. B · NO₃⁻
- 6. B · Its intermolecular forces are weaker than water's
- 7. A · HCl < CH₃COOH < NaCl
- 8. B · Tetrahedral
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