1.

Select the correct statementsA. `CH_3 SiCl_3` under goes hydrolysis followed by inter molecular elimination of water to form a complex cross-linked polymer (i.e. silicone)B. Silicone fluids are thermally stableC. In two dimensional sheet silicate, three oxygen atoms of each tetrahedral are shared with adjacent `SiO_4^(4-)` tetrahedrals.D. Silica is not attacked by HF and NaOH.

Answer» Correct Answer - A,B,C
(A),(B) and ( C) are correct statements.
(D)`SiO_2 + 2NaOH to Na_2SiO_3 + H_2O`
`SiO_2 + 4HF to SiF_4 +2H_2O`
`SiF_4 + 2HF to H_2 [SiF_6]`


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