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Discovery of noble gas compounds were th...

Discovery of noble gas compounds were the basic of formation of an ionic solid , dioxigenyl hexafluoridoplatinate (V) `O_(2)^(oplus)[PtF_(6)]^(Θ)` when `O_(2)` reacts with `PtF_(6)` .This experiment was carried out by

A

Bartlett and Lohman

B

Ramsay

C

Dawar

D

Fischer -Ringe

Text Solution

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The correct Answer is:
c
Ionisation enithalpy of Ar is very high
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The formation of O_(2)^(+)[PtF_(6)]^(-) is the basis for the formation of xenon fluorides. This is because:

The oxidation state of oxygen in O_2[PtF_6] is

Rate of formation SO_(3) in this reaction is 1.6xx10^(-3)kg//min 2SO_(2)+O_(2)to2SO_(3) then rate at which SO_(2) reacts is :-

Asseration: The first real compound of the noble gases in 1962 "was" Xe^(+)[PtF_(6)]^(-) . Reason: The discovery was based on the basis of comparable ionisation energy of O_(2) and Xe and a compound O_(2)^(+)[PtF_(6)]^(-) was prepared by Bartlett which was later on reported to be [XeF]^(+)[Pt_(2)F_(11)]^(-) .

The first compound of the noble gasees was made in 1962. Barlett and Lohman had previously used the highly oxidizing compound platium hexaflouride to oxidize dioxygen. O_(2)+PtF_(6) to O_(2)^(+)[PtF_(6)]^(-) The first ionization energy for O_(2) to O_(2) is 1165kJ*mol^(-1) , which is almost as the value of 1170kJ*mol^(-1) for Xe to Xe^(+) . It was predicated that xenon should react with PtF_(6) . Experimental showed that when deep of red PtF_(6) vapour was mixed with an equal volume of Xe the gases combined immediately at room temperature to produce a solid. Xe+PtF_(6) to Xe[PtF_(6)] Q. IUPAC name of first xenon-compounds synthesized by secientist Barlett is :