What is the symbol of the element Krypton?

Correct option is B

Ans. (b)
Sol. The chemical symbol for the element Krypton is Kr. Krypton is a noble gas and is found in trace amounts in Earth's atmosphere. It is used in various applications, such as in certain types of lighting and lasers.
Explanation of each option:
(a) K – Incorrect. K is the symbol for Potassium, not Krypton.
(b) Kr – Correct answer. Kr is the chemical symbol for Krypton.
(c) Ky – Incorrect. This is not the symbol for any known element.
(d) Kn – Incorrect. This is also not a valid symbol for any element.