10. VI. Answer the following in short:
1. What are food additives?
2. What are petrochemicals?
3. Why are silicon and germaniuin useful in the electronics industry?
4. what are the two types of pure substances?
5. What is a molecular formula?
6. Which can exist independently- atoms or molecules?
7. What do you understand by the term “triatomic molecule’? Give an example of the same.
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Answer:
colours
the remaining of extraction of oertol
semiconductors
c2h2 is example
atoms
tri atoms are present
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Answer: 1.) food adjectives are made from chemical and are included in food improve their shelf-life appearance are flavour.
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