Which of the following analogies is correct:

Options

A. Nitrogen : `1s^(2) 2s^(2) 2p^(3)` : Argon : `1s^(2) 2s^(2) 2p^(6)`
B. Carbon : maximum compounds : : Xenon : no compounds
C. `XeF_(2)` : Linear : : `ClF_(3)` : Trigonal planar
D. Helium : meteorological observations : : Argon : metallurgical processes

Answer

D

Explanation

Helium : meteorological observations :: Argon : metallurgical process Nitrogen : `1s^(2) 2s^(2) 2p^(3)`. Argon : `1s^(2) 2s^(2) 2p^(6)` is configuration of Neon not Argon Carbon maximum compounds :: Xenon no compounds Xenon forms compounds `XeF_(2)` Linear `ClF_(3)` Trigonal planar, `ClF_(3)` is T shaped not trigonal planar
Explanation : Helium is used in meteorological observation as it is lighter than air and has lesser density whereas Argon is used in metallurgical process as it is used to provide an inert atmosphere.