1.

Four elements have been listed, out of which three are alike in some manner and one is different. Select the odd one.1. Neon2. Argon3. Helium4. Sodium

Answer» Correct Answer - Option 4 : Sodium

The logic followed here is:

Neon, Argon and Helium are the noble gases or inert gases but sodium is an alkali metal.

So, Sodium is different from other.

Hence, "Sodium" is the correct answer.



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