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Elements of group 16 react with halogens...

Elements of group 16 react with halogens of the type `EX_6, EX_4` and `EX_2`. Which is false regarding these halides? (1)The stability of halides decreases in the order F->Cl->Br->I- (2)All hexafluorides are in gaseous state with octahedral structure (3)Among tetrafluorides SF4 is a gas ,SeF4 is liquid and TeF4 solid with seesaw structure (sp3dhybridisation) (4)Certain monohalides are dimeric in nature (S2F2,S2CI2,SeCI2 and Se2Br2),they do not disproportionate on heating. Dioxygen react directly with platinum.

A

The stability of halides decreases in the order

B

All hexafluorides are in gaseous state with octahedral structure

C

Among tetrafluorides `SF_4` is a gas, `SeF_4` liquid and `TeF_4` solid with see saw structure (`sp_3d` hybridisation)

D

Certain monohalides are dimeric in nature `(S_2F_2, S_2CI_2, SeCI_2` and `Se_2Br_2`), they do not disproportionate on heating. Dioxygen react directly with platinum.

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