a) Why do iron articles rust faster in Mumbai than in Delhi?
b) Explain why burning of wood and cutting it into small pieces are considered as two
different types of changes.
Answers
Answer:
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Answer:
a) Why do iron articles rust faster in Mumbai than in Delhi?
answer = Rusting is a chemical reaction which takes place when iron is exposed to moist air. ... So, the iron nail kept near the gateway of India in Mumbai will rust faster because there the humidity is more. In Delhi, the nail kept at Red fort will rust slowly as compared to the nail kept
near the gateway of India.
b) Explain why burning of wood and cutting it into small pieces are considered as two
different types of changes.
answer= Burning of wood is a chemical change while cutting of wood is a physical change because during burning, new substances are formed. After burning, we cannot get original substance, (i.e. wood) back.
Explanation:
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