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Which of the following substituted silanes produces a cross-linked silicone polymer when it undergoes hydrolysis?

1. R4Si
2. R2SiCl2
3. RSiCl3
4. R3SiCl

Correct answer: RSiCl3

Solution

RSiCl3 contains one silicon atom bonded to one organic group and three chlorine atoms, allowing it to undergo hydrolysis and form silanol groups. These silanol groups can then react with each other to create a cross-linked silicone polymer structure.

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