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The p-Block Elements — Chemistry STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceChemistryThe p-Block Elements2 Marks
Question
Explain the following:
Silicon forms $\text{SiF}^{2-}_6$ ion whereas corresponding fluoro compound of carbon is not known.
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Answer

Silicon has vacant d orbital in its valence shall due to which it can accommodate 6 electrons from fluorine atoms whereas carbone does not have d orbital and cannot expand its covalence beyond four.

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