Name the gas evolved in each case (formula is not acceptable).
The gas that burns in oxygen with a green flame.

Explanation

To solve the question regarding the gas that burns in oxygen with a green flame, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Characteristics of the Gas**: The question specifies that we need to find a gas that burns in oxygen and produces a green flame.

2. **Recall Common Gases**: Think about gases that are known to burn in oxygen. Common examples include hydrogen, methane, and ammonia.

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