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Chemical Reacti...

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  • Question 1
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    How many molecules of sodium hydroxide will react with one molecule of copper sulphate to produce one molecule of copper hydroxide and one molecule of sodium sulphate?

  • Question 2
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    Mercuric oxide is unstable at higher temperatures and breaks down to produce mercury and oxygen as depicted below:

    2HgO(s) 2Hg(l) + O2(g)

    The reaction may be classified as:

  • Question 3
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    Which of the following decomposition reactions takes place in our body?

  • Question 4
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    Which of the following reactions is a double displacement reaction?

  • Question 5
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    Consider the reaction
    A2+ + B B2+ + A
    Which of the following particles acts as an oxidizing agent?

  • Question 6
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    Which of the following processes cannot be defined as a reduction process?

  • Question 7
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    Ravi wants to synthesize sulphuric acid from sulphur and oxygen in the presence of water.The reaction would be called as _______.

  • Question 8
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    Which of the following substances acts as a reducing agent?

  • Question 9
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    Which of the following conditions are required during Haber`s process while preparing ammonia?

  • Question 10
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    Pb3O4 + 2C 3Pb + 2CO2
    What is the above reaction known as?

  • Question 11
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    When acidity is produced in our stomach, we take antacid which gives relief. Identify the type of reaction in this case.

  • Question 12
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    Which of the following categories will you place the reaction involving the rusting of iron?

  • Question 13
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    What is released when copper oxide is heated with carbon monoxide?

  • Question 14
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    What happens in thermal decomposition?

  • Question 15
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    When a strip of iron metal is placed in copper sulphate solution, a coating of copper on the iron strip is formed. This is because ____.

  • Question 16
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    Complete the given reaction by choosing the correct option.

    KOH + HNO3 _______ + H2O

  • Question 17
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    Complete the given reaction by choosing the correct option.

    H2S + Cl2 _______ + 2HCl

  • Question 18
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    Those reactions which proceed in both the directions and result in the formation of a mixture of reactants and products are called ______.

  • Question 19
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    Which of the following statements is true for CuO + H2 Cu + H2O?

  • Question 20
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    2H2O2 2H2O + O2

    The above equation shows the formation of water and oxygen from hydrogen peroxide. Into which of the following categories would you place the above reaction?

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