Which of the following pairs of chemical elements and their symbols is INCORRECT?

Question

Question

This question was previously asked in

SSC CPO 2022 Tier-I Official Paper (Held On 11 Nov 2022 Shift 2) [Answer Key]

Answer 1

The correct answer is Potassium-Po.

Key Points

Potassium:
- Potassium is a chemical element with the symbol K.
- The Atomic number of potassium is 19.
- It is a silvery-white metal that is smooth enough to be sliced with little force with a knife.
- Potassium reacts rapidly with atmospheric oxygen within seconds of exposure to form flaky, white potassium peroxide.

Additional Information

Phosphorus	Phosphorus is a chemical element with atomic number 15. The symbol of phosphorus is P. It was discovered by Hennig Brand in 1669.
Iron	Symbol Fe and atomic number = 26. Wrought Iron is the purest form of iron. The Most impure form of Iron is Pig Iron.
Iodine	Iodine is a chemical element with the symbol I and atomic number 53. Iodine is a trace element that is naturally present in some foods, is added to some types of salt, and is available as a dietary supplement.