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Starting from SiCI4, prepare the following in steps not exceeding the number given in parentheses (give reactions only):
(i) Silicon (1)
(ii) Linear silicone containing methyl groups only (4)
(iii) Na2SiO3 (3)

Amit Saxena , 11 Years ago
Grade upto college level
anser 1 Answers
Navjyot Kalra

Last Activity: 11 Years ago

(i) SiCl4 + 2Mg(or Zn) → Si + 2MgC12 (or ZnCI2)
(ii) SiCl4 + 2CH3MgCI → (CH3)2SiC12 + 2MgC12
232-1571_7777777.jpg
Polymerization continues on both ends to give linear silicone.
(iii) SiCI4 + 2Mg → Si + 2MgC12
Si + Na2CO3 → Na2SiO3 + C
SiCI4 + Na2CO3 → Na2SiO3 + C
Si(OH)2 \overset{heat}{\rightarrow}SiO2 + 2H2O
SiO2 + 2NaOH → Na2SiO3 + H2O
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