1.

Assertion (A) : Silicons are water repelling in nature. Reason (R ) : Silicons are organosilicon polymers, which have (-R_(2)SiO-) as repeating unit.

Answer»

A and R both are correct R is the correct EXPLANATION of A
Both A and R are correct but R is not the correct explanation of A
A and R both are correct
A is not correct but R is correct

Solution :Silicones are a groups of organo silicon polymers which have `(R_(2)SiO)` as a repeating unit. This suggests that silicones are SURROUNDED by non-polar ALKYL groups that are water repelling in nature. They have WIDE applications. It is used for water proofing of fabrics.


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