Name the reaction
`C_(10)H_(22) overset(900K) rarr C_(4)H_(8) + C_(6) H_(14)`

Options

A. Alkylation
B. Cracking
C. Pyrolysis
D. Fractionation

Explanation

To solve the question regarding the reaction of \( C_{10}H_{22} \) producing \( C_{4}H_{8} \) and \( C_{6}H_{14} \), we can follow these steps:

### Step 1: Identify the Reaction Type
The reaction involves the breakdown of a larger hydrocarbon (\( C_{10}H_{22} \)) into smaller hydrocarbons (\( C_{4}H_{8} \) and \( C_{6}H_{14} \)). This indicates that the larger molecule is being split into smaller components.

**Hint:** Look for clues in the molecular formulas to determine if the reaction involves breaking down larger molecules.

### Step 2: Understand the Process
The process of breaking down larger hydrocarbons into smaller ones is commonly referred to as "cracking." This can occur through various methods, including thermal cracking, where heat is applied to facilitate the reaction.

**Hint:** Consider the conditions of the reaction (in this case, high temperature) to identify the specific type of reaction.

### Step 3: Classify the Type of Cracking
In this case, since the reaction occurs at a high temperature (900 K), it is likely a thermal cracking reaction. Thermal cracking typically involves breaking down alkanes into alkenes and smaller alkanes.

**Hint:** Remember that thermal cracking often produces alkenes and smaller alkanes from larger alkanes.

### Step 4: Conclude the Reaction Name
Based on the analysis, the reaction can be classified as "cracking," specifically thermal cracking due to the high temperature involved.

**Hint:** Think about the common terminology used in organic chemistry for reactions that involve breaking down larger molecules.

### Final Answer
The reaction \( C_{10}H_{22} \overset{900K}{\rightarrow} C_{4}H_{8} + C_{6}H_{14} \) is called **cracking**.