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Introduction to Noble Gases

Total number ...

Question

Total number of inert gases among the following is :
H, He, Ne, F, Ar, Kr, K

A

1

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B

2

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C

3

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D

4

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Solution

The correct option is D 4
From periodic table it can be seen that total number of inert gases are six.
Helium (He); Neon ( Ne); Argon (Ar); Krypton (Kr); Xenon (Xe); Radon (Rn).

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