Name the chemical used for grinding the animal tissue for chemical analysis of organic compounds.

Explanation

**Step-by-Step Solution:**

1. **Understanding the Requirement**: The question asks for a chemical that is used for grinding animal tissue specifically for the purpose of chemical analysis of organic compounds.

2. **Identifying the Process**: When conducting chemical analysis on animal tissues, the tissue needs to be ground to release its components. This is typically done using a mortar and pestle.

3. **Choosing the Right Chemical**: To facilitate the grinding process and to help in the extraction of organic compounds, a specific chemical is used. In this case, the chemical is trichloroacetic acid (TCA).

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