Ethanol can be converted to ethene which can then be changed to ethane.
Choose the correct word or phrase from the brackets to complete the following sentences:
The conversion of ethene to ethane is an example of ______ (hydration/ hydrogenation)

Explanation

To solve the question, we need to understand the conversion process from ethene to ethane and identify the type of reaction involved. Let's break it down step by step:

### Step 1: Identify the Reactants and Products
- **Reactant**: Ethene (C₂H₄), which has a double bond between the carbon atoms.
- **Product**: Ethane (C₂H₆), which has single bonds between the carbon atoms.

### Step 2: Understand the Reaction
- The conversion of ethene to ethane involves the addition of hydrogen (H₂) to the ethene molecule. This is because ethene has a double bond that can be broken to allow for the addition of hydrogen atoms.
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