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1 Answer
anor277
Dec 4, 2017

All of the given structures EXCEPT for "stannous chloride"

Explanation:

We simply apply VESPER....

SnCl_2...there are 3 electron pairs around the tin centre....Cl-ddotSn-Cl, and thus /_Cl-Sn-Cl~=120^@..."stannic chloride", SnCl_4 would be tetrahedral, why?

:N-=C-O^(-), we gots 5+4+6+1=8 "electron pairs" to distribute.... and linear geometry with respect to /_N-C-O=180^@..of course the alternative Lewis structure...""^(-):stackrel(ddot)N=C=O^, is ALSO linear.

O=stackrel(+)N=O^, we gots 6+5+6-1=8 "electron pairs" to distribute.... and linear geometry with respect to /_O-N-O=180^@..we conceive that the formal charge lies on nitrogen.

S=C=S, we gots 6+4+6=8 "electron pairs" to distribute.... and linear geometry with respect to /_S-C-S=180^@..if you have ever used this stuff you would remember its pen and ink, and also it is VERY inflammable.

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