1. Silicones are called inorganic polymers due to absence of _________________in the main backbone chain.
Correct Answer is : Carbon atom
2. Silicones resemble inorganic polymers in having high % of
Correct Answer is : Ionic character of Si-O bond
3. The catalyst used in the preparation of poly-siloxanes is
Correct Answer is : Grignard reagent
4. Which of the following is tri-functional?
Correct Answer is : Momethyl silicon chloride
5. Which of the following gives linear chain silicones on polymerisation by controlled hydrolysis?
Correct Answer is : Dimethyl silicon chloride