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Q.

XeF2 donates F-  when  reacts with (X) and accepts F- when reacts with (Y). X and Y are respectively

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a

RbF, CsF

b

PtF5,PtF5

c

KF,AsF5

d

SbF5,NaF

answer is C.

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Detailed Solution

X must be acceptor and Y must be donor . Acceptor should have vacant orbital to accept electron pair from flouride ion of XeF2 

Electron pair of F- of donor is accepted by vacant orbital of Xe of XeF2 

X = MF5 ( M = P,As,Sb,Bi,Pt etc)

Y = MF ( M = Na ,K, Rb,Cs etc)

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