Chemistry
Grade-6
Easy
Question
Oxygen was discovered by
- Joseph priestly
- John Dalton
- Antony Lavoisier
- Niels Bohr
Hint:
Oxygen is a chemical element with the atomic number 8 and has the symbol O. In 1772, it was discovered by heating potassium nitrate, mercuric oxide, and many other substances.
The correct answer is: Joseph priestly
Oxygen was discovered by Joseph Priestly.
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