Metals like silver, gold and platinum which do not corrode and do not react with oxygen even on strong heating are called ____ metals.

Explanation

To solve the question, we need to identify the type of metals that do not corrode and do not react with oxygen even when subjected to strong heating. Let's break it down step by step:

### Step-by-Step Solution:

1. **Identify the Metals Mentioned**: The question specifies metals like silver, gold, and platinum.
- Silver is represented by the chemical symbol Ag.
- Gold is represented by the chemical symbol Au.
- Platinum is represented by the chemical symbol Pt.
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