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Physical and Ch...

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  • Question 1
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    Which of the following change is not a chemical change?

  • Question 2
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    The formation of water is a reversible change. Identify the chemical equation of the formation of water.

  • Question 3
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    Explosion of a fire work (such as a cracker)

  • Question 4
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    Which of the following is not a physical change?

  • Question 5
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    The gas you use in kitchen is called liquefied petroleum gas (LPG). In the cylinder, it exists as a liquid. When it comes out of the cylinder, it becomes a gas (process A), then it burns (process B). Choose the correct statement.

  • Question 6
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    Which of the following is not a chemical change?

  • Question 7
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    Classify the changes involved in the following process as physical or chemical changes.

    Dissolving sugar in water.

  • Question 8
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    Which of the following is a chemical change?

  • Question 9
    1 / -0

    Which of the following statements is true?

  • Question 10
    1 / -0

    Steel is preferred over iron in construction of ships because:

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