E represents an element belonging to carbon family- E-2X2 - EX4 X-F- Cl- Br- I

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Preparation and Properties of Beryllium Hydride

E represents ...

Question

E represents an element belonging to carbon family. $E + 2 X_{2} \to E X_{4} (X = F, C l, B r, I)$

Stability of $E X_{4}$ decreases down the $14^{t h}$ group

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$P b I_{4}$ does not exist

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Ge and Pb form $E X_{2}$ as well

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All are correct

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E represents an element belonging to carbon family. $E + 2 X_{2} \to E X_{4} (X = F, C l, B r, I)$

I^{-}, B r^{-}, C l^{-}, F^{-}

F_{2 (g)} + 2 e^{-} \to 2 F_{(a q)}^{-}; E^{o} = + 2.85 V

{C l}_{2 (g)} + 2 e^{-} \to 2 {C l}_{(a q)}^{-}; E^{o} = + 1.36 V

{B r}_{2 (l)} + 2 e^{-} \to 2 {B r}_{(a q)}^{-}; E^{o} = + 1.06 V

I_{2 (g)} + e^{-} \to 2 I_{(a q)}^{-}; E^{o} = + 0.53 V

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