44. Which polymer have C-O-C linkage? 1) Bakelite 2)Melamine formaldehyde resin 3)Starch 4) Both 2 & 3

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Which of the following polymers are condensation polymers?

(a) Bakelite

(b) Teflon

(d) Melamine formaldehyde resin

Q. Common monomer present in melamine formaldehyde polymer and bakelite is ______.

Match the polymers given in Column I with their main applications given in Coloumn II.

$\begin{matrix} C o l u m n I & C o l u m n I I A . B a k e l i t e & 1. & U n b r e a k a b l e c r o c k e r y B . L o w d e n s i t y p o l y e t h e n e & 2. & N o n - s t i c k c o o k w a r e s C . M e l a m i n e - f o r m a l d e h y d e r e s i n & 3. & P a c k a g i n g m a t e r i a l f o r s h o c k a b s o r b a n c e D . N y l o n - 6 & 4. & E l e c t r i c a l s w i t c h e s E . P o l y t e t r a f l u o r o e t h a n e & 5. & S q u e e z e b o t t l e s F . P o l y s t y r e n e & 6. & T y r e, c o r d s \end{matrix}$

Which of the following are addition polymers?

(a) Nylon

(b) Melamine formaldehyde resin

(d) Polystyrene

Q. Match the Column -I with Column-II

\begin{matrix} Column-I & Column-II (Polymer) & (Monomer) (A) Bakelite & (p) ε -caprolactum (B) Polypropylene & (q) Ethylene glycol + Phthalic anhydride (C) Glyptal & (r) Propene (d) Nylon-6 & (s) Phenol+Formaldehyde \end{matrix}

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