Which one of the following statements is not correct?
Hydrogen is an element
Hydrogen is the lightest element
Hydrogen has no isotopes
Hydrogen and oxygen form an explosive mixture
Answer is Right!
Answer is Wrong!
This question was previously asked in
UPSC CDS-1 – 2016
Hydrogen is indeed an element and the lightest element. A mixture of hydrogen and oxygen is highly explosive. However, hydrogen has three naturally occurring isotopes: Protium (¹H), Deuterium (²H or D), and Tritium (³H or T). They differ in the number of neutrons (0, 1, and 2 respectively) while all having one proton.