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Define Variable valency....

Define Variable valency.

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NAVNEET PUBLICATION-MEASUREMENT OF MATTER-EXERCISE
  1. Define Mole explaining mole concept.

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  2. State the laws/ Define valency

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  3. Define Variable valency.

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  4. Define Radicals.

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  5. Answer the following questions: State law of conservation of matter.

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  6. Answer the following questions: State the law of constant proportion....

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  7. Answer the following questions: Two samples 'm' and 'n' of slaked lim...

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  8. Answer the following questions: How is the size of an atom determined...

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  9. Answer the following questions: What is meant of atomic radius?

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  10. Answer the following questions: What are nucleons?

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  11. Answer the following questions: The magnesium atom is smaller than th...

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  12. Answer the following questions: What is meant by Unified Atomic mass ...

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  13. Answer the following questions: Name two elements having independent ...

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  14. Answer the following questions: What is meant by symbol of an element?

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  15. How is an element represented in Chemistry?

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  16. Write down the symbols of the elements you know.

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  17. Write down the symbols for the following elements : antimony, iron, go...

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  18. Answer the following questions: What is meant by a molecule?

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  19. Answer the following questions: What is meant by molecular mass?

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  20. Answer the following questions: Explain with examples what is meant b...

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