Choosing words from the following list, write down the appropriate words to fill in blanks (i) to (v) below.
Addition, carbohydrates, `C_n H_(2n - 2) , C_n H_(2n +2)`, electrochemical, homologous, hydrocarbons, saturated, substitution, unsaturated.
The alkanes form (i) _____ series with the general formula (ii) ______The alkanes are (iii) ______ (iv) _____ which generally undergo (v) ______ reactions.

Explanation

To answer the question, we need to fill in the blanks with the appropriate words from the provided list. Here’s the step-by-step solution:

1. **Identifying the Series of Alkanes**:
- Alkanes are a group of organic compounds that share a common structure and properties. They form a specific type of series known as a **homologous series**. This series is characterized by a gradual change in physical properties and a similar chemical structure.
- **Blank (i)**: **homologous**

2. **General Formula of Alkanes**:
- The general formula for alkanes is given by the formula **C_nH_(2n + 2)**. This formula indicates that for every n number of carbon atoms, there are (2n + 2) hydrogen atoms.
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