Practice U
SECTION A
A Multiple Choice Questions (MCO) :
Which of the following is not a chemical reaction?
(a) burning of coal
(b) fermentation of sugar
(c) melting ofice
(d) digestion of food
A solid product that separates out after a chemical reaction is called
(a) reactant
(b) catalyst
(c) filtrate
(d) precipitate
Dilute sulphuric acid is poured on zinc granules. Which of the following stat
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Answer:
BURNING OF COAL
CATALYST
......last I not
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