Question

– [SiF6]2(-)ve exists but [Sicl]2(-) ve does not, Explain.
es 1​

Answer 1

Answer:

HERE IS UR ANS:-

In SiCl6(2-) the chlorine atom is much larger than flourine which does not allow the six chlorines to surround the silicon due to repulsions between chlorine atoms. silicon cannot acomodate 6 chlorines around it. Hence , due to interelectron repulsions between chlorine atoms the compound SiCl6(2-) is unstable and not known.

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Answer 2

Answer:

sicl2- doesn,t exist

Explanation:

1.> because in [sif6]2-  silicon is of large size and flourine is of small size as compared to si .so si can accomodate 6 small f as compared to one large chlorine . in [sicl]2- both silicon and chlorine is of compareable size .infact chlorine is large in size then silicon and have more electrons in d -subshell              

2.> si do not have d-subshell to accomodate such large chlorine atom