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The catalyst used in the preparation of poly-siloxanes is ____________

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The catalyst used in the preparation of poly-siloxanes is ____________

(a) Benzoyl peroxide

(b) Grignard reagent

(c) Cumene hydroperoxide

(d) Lewis acid

I have been asked this question by my school teacher while I was bunking the class.

My doubt stems from Silicones and Polymeric Composites topic in chapter Polymers of Engineering Chemistry I

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The correct option is (b) Grignard reagent

Easiest explanation: The catalyst used in the preparation of poly-siloxanes is Grignard reagent. The Grignard reaction is an organometallic chemical reaction in which alkyl, vinyl, or aryl-magnesium halides, CH3MgI (Grignard reagents) add to a carbonyl group in an aldehyde or ketone.

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