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Define a chemical reaction. Which observ...

Define a chemical reaction. Which observation help you to determine whether a chemical reaction has taken place ?

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Chemical Reaction
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OSWAAL PUBLICATION-CHEMICAL REACTIONS AND EQUATIONS-TOPIC-1 (Chemical Reactions and Equations) (SHORT ANSWER TYPE QUESTIONS-II)
  1. Define a chemical reaction. Which observation help you to determine wh...

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  2. Define the term decomposition reaction . Give one example each of ther...

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  3. Write the steps for balancing the chemical quation for the formation o...

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  4. (a) Mention the four informations given by an equation. (b) State ...

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  5. When a copper wire was left in silver nitrate solution for sometime, i...

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  6. 2g ferrous sulphate crystal are heated in a dry boiling tube. (i) L...

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  7. (a) In the following reactions, name the reactants, which undergo oxid...

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  8. (a) Write chemical equations. (i) When carbon dioxide gas is passed ...

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  9. Identify the type of each of the following reactions. Also write balan...

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  10. (i) Solution of a substance 'X' is used for testing carbon dioxide . W...

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  11. What happens when : (i) Dilute hydrochloric acid is added to solid ...

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  12. Write the chemical equation of the reaction with an example each in wh...

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  13. Complete and balance the following chemical equations: (i) CaCO(3...

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  14. Write balanced chemical equations for the following reactions : (i)...

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  15. Balance the following chemical equations and state whether they are ex...

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  16. Write the chemical equation involved in the following chemical reactio...

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  17. 2g of ferrous sulphate crystals are heated in a boiling tube. (i) St...

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  18. What do you observe in activity given in the figure? What are the caus...

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