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Which of the following is a correct stat...

Which of the following is a correct statement ?

A

`CO_(2)` is a monomer while `SiO_(2)` is a three dimensional giant molecule

B

Graphite is a nonconductor of electricity

C

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

Text Solution

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The correct Answer is:
A, C, D
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