Here are the Matric 9th Chemistry Notes Chapter 4 Structure of Molecules -
MCQs,Questions and Practicals. It Includes short questions, Long
question and Practical Questions pdf download or view online
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What is duplet rule?
Ans. Duplet Rule: "Attaining 2 electrons in the Valence shell is called duplet rule Example: Helium (He) has two electrons in its valence shell.
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