SCIENCE
CHEMISTRY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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____ discovered carbon.
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Al razi
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J. Black
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J. Priestly
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Ibn e sina
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Explanation:
Detailed explanation-1: -The discovery of carbon dioxide by Joseph Black (1728-1799) marked a new era of research on the respiratory gases.
Detailed explanation-2: -Joseph Black, (born April 16, 1728, Bordeaux, France-died Nov. 10, 1799, Edinburgh, Scot.), British chemist and physicist best known for the rediscovery of “fixed air” (carbon dioxide), the concept of latent heat, and the discovery of the bicarbonates (such as bicarbonate of soda).
Detailed explanation-3: -Black noticed that upon heating, calcium carbonate (CaCO3) produced a gas that was denser than air and could not sustain fire or animal life. He called this gas ‘fixed air’, but we now know it as carbon dioxide (CO2).
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