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Sunday, February 9, 2020

Why SF6 is known but SCl6 is not ? Explain.


Sulphur is a small atom. Hence it can accommodate six small fluorine atoms around it. While size of Chlorine is larger than fluorine, thus S cannot accommodate six large chlorine atoms around it. Moreover, because of low electronegativity of Cl, it cannot easily oxidized sulphur to form S(VI). Hence SCl6 cannot easily form and stable.

Related Questions:

Question (1): Why aqueous solution of AlCl3 is acidic in nature?

Question (2): What happen when aq AlCl3 react with Acid or Base?

Question (3): Although anhydrous aluminium chloride is covalent but its aqueous solution is ionic in nature. Why?

Question (4): Arrange in increasing order of extent of hydrolysis [ CCI4, MgCI2, AICI3, PCl5, SiCI4].

Question (5): Although Sulphur contain vacant d-orbital but SF6 does not undergo hydrolysis. Why?

Question (6): CCl4 can not be hydrolysed but SiCl4 can be. Why?

Question (7): What are the hydrolysis products of urea?

Question (8): Why SF6 is inert where as SF4 is highly reactive towards H20?.

Question (9): Why SF6 behaves inert towards hydrolysis?

Question (10): Why PCl3 hydrolysed while NCl3 can not be hydrolysed?

Question (11): Why hydrolysis of NCl3 gives NH4OH and HOCl, while PCl3 on hydrolysis gives H3PO3 and HCl?

Question (12) NCl3 and PCl3 on hydrolysis give different kinds of products. These is because of

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