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Which has greater reactivity...

Which has greater reactivity

A

`TeCl_(6)`

B

`SF_(6)`

C

`TeF_(6)`

D

`SeF_(6)`

Text Solution

Verified by Experts

The correct Answer is:
C
`TeCl_(6)` is unknow because Te atom cannot accommodate six large Cl atoms around itself. `SF_(6)` is extremely unreactive, because it is coordinately saturated and sterically hindered. `SeF_(6)` is slightly less reactive then `TeF_(6)` which is hydrolysed by water.
`TeF_(6)+6H_(2)Oto 6HF+H_(6)TeO_(6)`
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