Select the odd one out: (2021)

₹0.0

Question: Select the odd one out: (2021)

Options:

Correct Answer: Oxygen

Exam Year: 2021

Solution:

Oxygen is a reactive gas, while the others are noble gases.

Select the odd one out: (2021)

Select the odd one out: (2021)

Step 1: Identify the items in the list. In this case, we have Oxygen and noble gases.
Step 2: Understand what noble gases are. Noble gases are a group of gases that do not react easily with other elements.
Step 3: Recognize that Oxygen is not a noble gas. It is a reactive gas that can combine with other elements.
Step 4: Compare Oxygen with the noble gases. The noble gases include Helium, Neon, Argon, Krypton, Xenon, and Radon.
Step 5: Conclude that Oxygen is different from the noble gases because it is reactive, while the others are not.

Noble Gases vs. Reactive Gases – The question tests the understanding of the properties of gases, specifically distinguishing between noble gases, which are inert and non-reactive, and reactive gases like oxygen.