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Define the following: Atom, Molecule , ...

Define the following: Atom, Molecule , Symbol, Formula

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PEARSON IIT JEE FOUNDATION-LANGUAGE OF CHEMISTRY AND CHANGES AROUND US -short answer type questions
  1. Define the following: Atom, Molecule , Symbol, Formula

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  2. Write the formulae for the following

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  3. Write the names of the elements with the following symbols.

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  4. Represent the following in terms of their formulae.

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  5. Molecules of some elements and compounds are given below Identify h...

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  6. Write the formulae of different compounds formed among the given el...

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  7. Identify the combining power of the elements present in the follow...

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  8. Write the compounds of aluminium with the following elements Oxyg...

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  9. Complete the following table.

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  10. Calculate the ratio of the number of atoms of the first elements...

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  11. Classify the following into solids and liquids Glucose, Vinegar Nitri...

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  12. Match the following

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  13. Match the following

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  14. Write the symbols for the following elements. (a) Boron (b) Sul...

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  15. Give two example for the following

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  16. Define the following: Chemical change, Reversible change, Periodic ch...

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  17. Classify the following changes as reversible and irrefversible chan...

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  18. Analyse the above diagrams and answer the following questions. (a) ...

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  19. State three differences between a physical change and a chemical chang...

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  20. Give reasons for the following (a) When magnesium is burnt in ...

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