Short Answer Type
Long Answer TypeShort Answer TypeFor a compound LiAl(SiO3)2, what is the charge on SiO3 unit? What is the arrangement of oxygen atoms around the silicon atom?
Long Answer TypeShort Answer TypeConsider the compounds, 
. How will they behave with water? Justify
Being a Lewis acid, BCl3 readily undergoes hydrolysis.Boric acid is formed as a result.
BCl3 +3H2O --> 3HCl +B(OH)3
CCl4 completely resists hydrolysis. Carbon does not have any vacant orbital. Hence, it cannot accept electrons from water to form an intermediate. When CCl4 and water are mixed, they form separate layers.
CCl4 +H2O --> No reaction
Long Answer TypeExplain the difference in properties of diamond and graphite on the basis of their structures.
Short Answer TypeExplain why is there a phenomenal decrease is ionisation enthalpy from carbon to silicon.
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