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Chemical Reacti...

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  • Question 1
    1 / -0

    Identify an element combination reaction from the following.

  • Question 2
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    Which of the following is not a decomposition reaction?

  • Question 3
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    When sodium hydroxide solution is added to copper sulfate solution, a blue precipitate of copper hydroxide is formed along with sodium sulfate solution. What kind of chemical reaction takes place between them?

  • Question 4
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    $$KMnO_4+H_2SO_4+FeSO_4 \rightarrow K_2SO_4 + MnSO_4+Fe_2(SO_4)_3+H_2O$$


    Coefficients of sulphuric acid and ferric sulphate in the balanced equation of above reaction are______and ______respectively.

  • Question 5
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    Identify the type reaction from the following.

    $$H_2CO_3 (aq) \rightarrow H_2O(l) + CO_2(g)$$

  • Question 6
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    Sodium bicarbonate on decomposition forms:

  • Question 7
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    Which of the following pairs will give displacement reactions?

  • Question 8
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    Take 5 mL of sodium sulphate solution in a test tube and 5 mL of barium chloride solution in another test tube. Mix the two solutions slowly and leave the test tube undisturbed for some time. A white precipitate is formed after some time.
    Which of the following statements is correct about the above reaction?

  • Question 9
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    Observe the reaction:


    $$CaCO_{3(s)} + 2NaOH_{(aq)} \rightarrow Na_{2}CO_{3(aq)} + Ca(OH)_{2(aq)}$$

    Which of the following is a type of above reaction?

  • Question 10
    1 / -0

    An example of reversible reaction is 

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