Elements of Groups 16, 17 and 18 — Chemistry STD 12 Science — Question
Maharashtra BoardEnglish MediumSTD 12 ScienceChemistryElements of Groups 16, 17 and 182 Marks
Question
Explain the reactivity of Group 18 towards halogens.
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Answer
Group 18 elements are chemically inert.
However, inert elements like krypton and xenon react directly with fluorine under appropriate conditions to give their fluorides. For example, $Xe _{( g )}+ F _{2( g )} \xrightarrow[1 atm ]{673 K } XeF _{2( s )}$
The xenon fluorides $XeF _2, XeF _4$ and $XeF _6$ are colourless crystalline solids which sublime at 298 K.
These fluorides are strong fluorinating agents.
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