NEETChemistryp Block Elements (Group 13 & 14)
Correct statements among regarding silicones are: ( a ) They are polymers with hydrophobic character. ( b ) They are biocompatible. ( c ) In general, they have high thermal stability and low dielectric strength. ( d ) Usually, they are resistant to oxidation and used as greases.
Options
- A( a ) , ( b ) and ( c ) only
- B( a ) and ( b ) only
- C( a ) , ( b ) , ( c ) and ( d )
- D( a ) , ( b ) and ( d ) only
Correct answer
C. ( a ) , ( b ) , ( c ) and ( d )
Step-by-step solution
Silicones with medium length chains behave as viscous oils, jellies and greases. They are chemically inert, i.e., resistant to oxidation. Since silicones are surrounded by non-polar alkyl groups, hence, are hydrophobic in nature. Being biocompatible, they are used in surgical and cosmetic implants. Hence, all options are correct.