Among the following the correct statements are
I. Germanium exists only in traces
II. 
molecule is tetrahedral in shape
III. 
is more stable than 
Text Solution
Verified by ExpertsB
Statement I is correct as Ge and 
exist on earth's
crust in trace amounts 
.
Statement II is correct as 
belongs to group 14 and thus has four valence electrons out of which all four are used to make the four 
bonds.
The resultant geometry is tetrahedral.
Statement III is incorrect as the stability of the +2 oxidation state increases down the group due to inert pair effect and is predominant for heavier elements.
Ge prefers +4 state over +2 so 
is more stable than Ge 
.
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