Question

Which of the following is/ are sure indication/ indications of a chemical change? a- Evolution of a gas. b- Evolution of heat. c- Change in colour. d- Formation of a new substance without nuclear change. e- None of the above.​

Answer 1

Answer:

d. Formation of a new substance without nuclear change seems to be the most likely option here.

Explanation:

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Answer 2

Answer:

D - formation of a new substance without nuclear change

Explanation:

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