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Which of the following is a correct statement ?A. `CO_(2)` is a monomer while `SiO_(2)` is a three dimensional giant moleculeB. Graphite is a nonconductor of electricityC. In `(CH_(3))_(3) , C-N-C` bond angle is approximately `107^(@)` whereas in `(SiH_(3))_(3)` N , `Si-N-Si` bond angle is approximately `120^(@)`D. In `CO_(3)^(2-)` ion all C-O bonds are equal , while in `H_(2)CO_(3)` all C-O bonds are not equal

Answer» Correct Answer - A::C::D


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