Chemistry 9701/22 March 2018 | Cambridge AS Level Past Papers With Mark Scheme

The document you uploaded is a Chemistry A-Level exam (Paper 2: AS Level Structured Questions) from February/March 2018. It covers a wide range of topics:

### 1. Ionization Energies:
- First ionization energy and trends across periods.
- Explaining the variation in ionization energy and how it relates to atomic structure.

### 2. Atomic Radius Trends:
- Graphical representation and explanation of atomic radius trends across Period 3 elements.

### 3. Allotropes of Carbon:
- Description of lattice structures of C60 (buckminsterfullerene) and diamond, and explanation of why they sublime at different temperatures.

### 4. Hydrocarbons:
- Definition of hydrocarbons and testing for double bonds in C60H18.

### 5. Reaction with Hydrogen:
- Understanding the reaction between C60 and hydrogen to form C60H2x, and deducing the molecular formula of the resulting hydrocarbon.

### 6. Silicon and Its Reactions:
- Bonding and structure of silicon, the reaction of magnesium with silicon, and the formation of Si4- ions.
- Writing equations for reactions involving SiH4 and oxygen.

### 7. Calcium and Its Compounds:
- Reactions of calcium with acids, formation of calcium ethanedioate, and its applications.
- Understanding the reactions of calcium with sulfuric acid and other compounds.

### 8. Cyclohexane Reactions:
- Free radical substitution in cyclohexane, conversion of cyclohexene into adipic acid, and differences in IR spectra of cyclohexene and adipic acid.

Let me know if you need help with specific questions or calculations from this exam!