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Changes around ...

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  • Question 1
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    Which of the following types of reactions involves both chemical and physical changes?

  • Question 2
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    What kind of change occurs when any substance is burnt in air?

  • Question 3
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    Which type of change occurs when a glass tumbler breaks?

  • Question 4
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    Which of the following statements justifies that photosynthesis is a chemical change?

  • Question 5
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    What happens to the solubility of a substance on heating?

  • Question 6
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    Souring of milk is a __________ change.

  • Question 7
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    Why does an iron container turn reddish brown when exposed to moisture for a long period of time?

  • Question 8
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    What kind of change has been observed in the state of water during condensation?

  • Question 9
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    By which of the following methods can a raw egg be changed to a boiled egg?

  • Question 10
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    Which of the following items changes its state after heating?

  • Question 11
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    On heating, what kind of change will not take place in iron?

  • Question 12
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    Which of the following changes can be reversed?

  • Question 13
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    From the following options, find the odd one out.

  • Question 14
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    By which process can we recover dissolved sugar from water?

  • Question 15
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    To prevent the change of ice into water, which of the following is required?

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