Question

Write one observation when Magnesium ribbon is burnt in air. .
or
In a conical flask when dilute sulphuric acid is poured on zinc granules. On touching
the flask ,do you feel any change in its temperature? one word answer
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Answer 1

Answer:

When magnesium ribbon is burnt in the air it forms a white powdery substance MgO (magnesium oxide) and produces heat and light.