1.

Read the following write-ups and answer the questions at the end of it. Silicons are synthetic polymers containing repeated R_(2)SiO unit. Since, the imperical formula of a ketone (R_(2)CO), the name silicone has been given to this materials. silicons can be made into oils, rubberly elastamors and resins. They find a variety of applications because of their chemical inertness,water repelling nature, heat-resistence and good electrical insulating property. Commercial silicone polymers are usally methyl derivatives and to lesser a extent phenyl derivatives and are synthesised by the hydrolysis of R_(2)SiCl_(2) [R =methyl (Me) or phenyl (phi)] Me_(2)SiCl_(2) overset(H_(2)O)to O-overset(Me)overset(|)underset(Me)underset(|)(Si)-O-overset(Me)overset(|)underset(Me)underset(|)(Si)-O-overset(Me)overset(|)underset(Me)underset(|)(Si)-O- If we start with MeSiCl_(3) as the starting material, silicons formed is :

Answer»

`Me-overset(Me)overset(|)underset(Me)underset(|)(SI)-O-overset(Me)overset(|)underset(Me)underset(|)(Si)-O-overset(Me)overset(|)underset(Me)underset(|)(Si)-O-overset(Me)overset(|)underset(Me)underset(|)(Si)-Me`

NOTH of the above
None of the above

Solution :If we sttart with `MeSiCl_(3)`as the STARTING material, cross link SILICONES is formed.


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