State whether the following statements are true or false. If false, correct them.
Cotton yarn on burning gives an odour similar to that of a burning paper.

Answer

**Step-by-Step Solution:**

1. **Understanding the Statement:** The statement given is "Cotton yarn on burning gives an odour similar to that of a burning paper." We need to determine if this statement is true or false.

2. **Analyzing the Materials:** Cotton yarn is made from cotton, which is a natural fiber obtained from the cotton plant. Burning cotton yarn will release certain gases and produce a specific smell.

3. **Comparing with Paper:** Paper is also made from plant materials, typically wood pulp. When paper burns, it produces a smell that is characteristic of burning plant material.

4. **Identifying the Similarity:** Since both cotton yarn and paper are derived from plant sources, they are likely to produce similar smells when burned. This is because both materials are organic and will release similar compounds when combusted.

5. **Conclusion:** Therefore, the statement that "Cotton yarn on burning gives an odour similar to that of a burning paper" is true.

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**Final Answer:** The statement is **True**.

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