`8c.c.` of gaseous hydrocarbon requires `40c.c.` of `O_(2)` for complete combustion. Identify hydrocarbon.

Explanation

To identify the gaseous hydrocarbon based on the given information, we can follow these steps:

### Step 1: Understand the Given Data
We have 8 cc of a gaseous hydrocarbon that requires 40 cc of O₂ for complete combustion.

### Step 2: Establish the Volume Ratio
From the data, we can establish that the volume ratio of hydrocarbon to oxygen is:
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