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Changes Around Us — Science STD 6 — Question

CBSE BoardEnglish MediumSTD 6ScienceChanges Around Us1 Mark
MCQ
Which of the following is an endothermic reaction?
  • A
    The formation of curd from milk.
  • B
    The production of gas when quicklime is added to water.
  • C
    The opening of a soda bottle with production of gas.
  • ✓
    The freezing of water.
✓

Answer

Correct option: D.
The freezing of water.
The formation of curd from milk becomes faster if we use hot milk. It means that heat energy is absorbed by milk in the formation of curd. It is an endothermic reaction.

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