Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
BITSAT2018Chemistryp Block Elements (Group 13 & 14)Actual

The correct statement about silicone is

Options

  1. AThey are ketones with silyl group SiH 3 similar to alkyl, SiH 3 2 CO
  2. BThey are synthetic polymer containing repeated R 2 SiO 2   units .
  3. CThey are formed by hydrolysis of R 2 SiCl 2 .
  4. DAll of the above

Correct answer

C. They are formed by hydrolysis of R 2 SiCl 2 .

Step-by-step solution

Silicones are synthetic organo-silicon polymers containing repeated R 2 SiO units. Since the empirical formula is same as that of a ketone R 2 CO , the name silicon has been given to these materials. They can be formed by hydrolysis of dichlorosilanes R 2 SiCl 2 R 2 SiCl 2 + 2 H 2 O ⟶ R 2 Si OH 2 + 2 HCl

Practice p Block Elements (Group 13 & 14) on Quantrex Academy →

More from p Block Elements (Group 13 & 14)

In reaction BF ₃+3 LiBH ₄ 3 LiF +X ; X is 2023What is x in the following reaction? Al ( s )+ NaOH ( aq )+ H ₂ O ( l ) x+ H ₂( ~g ) 2023Ge (II) compounds are powerful reducing agents whereas Pb (IV) compounds are strong oxidants. It can be because 2022The number of 3 C -2 e⁻ bonds present in diborane is 2022Diborane ( B ₂ H ₆ ) reacts independently with O ₂ and H ₂ O to produce, respectively: 2021Identify the incorrect statement: 2020Among the following substituted silanes, the one which will give rise to cross linked silicone polymer on hydrolysis is? 2019The order of acidic strength of boron trihalides 2019 Full p Block Elements (Group 13 & 14) list All BITSAT PYQs