When one mole of calcium carbonate (CaCO3) reacts with one mole of hydrochloric acid (HCl), it produces one mole of carbon dioxide (CO2), at S.T.P one mole of carbon dioxide's density is 0.00195g/cm3 and weight of one mole of carbon dioxide is around 44gms so the volume of carbon dioxide corresponds to 22,400cm3.
Question : Directions: In the following question, a sentence is given with a blank that is to be filled in with an appropriate word. Four alternatives are suggested; choose the correct alternative out of them as your answer. Due to heavy rains, the match was called____.
Option 1: of
Option 2: off
Option 3: down
Option 4: out
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