Manipal MET2019Chemistryp Block Elements (Group 13 & 14)

SiF ₄ gets hydrolysed giving

Options

ASiO ₂
BSi ( OH )₂ ~F ₂
CH ₂ SiF ₆
DSi ( OH )₄

Correct answer

D. Si ( OH )₄

Step-by-step solution

SiF ₄+4 H ₂ O Silicic acid Si ( OH )₄ +4 HCl The trend towards hydrolysis decreases down the group. Silicon have vacant orbital to which water molecules can co-ordinate and hence their halides are hydrolysed by water.

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