Who discovered O2 in 1774 and described it as "dephlogisticated air"?
a. Robert Boyle
b. Jacque Charles
c. Thomas Beddoes
d. Joseph Priestley
ANS: D
In 1774, Joseph Priestley described his discovery of O2, which he called "dephlogisticated air."
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Safety glasses provide protection from splashes or sprays of fluids
Indicate whether the statement is true or false.
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What will be an ideal response?
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