The monomer of the polymer

 is :-

(a)

(b) CH32C=CCH32

(c) CH3CH=CH·CH3

(d) CH3CH=CH2

Concept Questions :-

Polymers: natural/synthetic, Biodegradable/non-biodegradable
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Which can absorb over 90% of its own mass of water and does not stick to wound ?

(a) Rayon

(b) Gun cotton

(c) Thiokol

(d) Saran

Concept Questions :-

Polymers: natural/synthetic, Biodegradable/non-biodegradable
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Thermoplastics are:

1. linear polymers

2. soften or melt on heating 

3. molten polymer can be moulded in desired shape

4. all of the above

Concept Questions :-

Polymers: natural/synthetic, Biodegradable/non-biodegradable
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Concept Questions :-

Polymers: natural/synthetic, Biodegradable/non-biodegradable
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Which of the following natural products is not a polymer ?

(a) DNA

(b) Cellulose

(c) ATP

(d) Urease

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Synthetic human hair wigs are made from a copolymer of vinyl chloride and acrylonitrile and is called:

1. PVC

2. polyacrylonitrile

3. cellulose

4. dynel

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Nylon-66 is a polyamide obtained by the reaction of

(a) COOH(CH2)4COOH + H2NC6H4NH2 - (p)

(b) COOH(CH2)4COOH + NH2(CH2)6NH2 

(c) COOH(CH2)4COOH + NH2(CH2)4NH2 

(d) COOHC6H4COOH - (p) + NH2(CH2)6NH2

Concept Questions :-

Classification - methods of polymerization ,copolymerization
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Which one is protein fibre ?

1. Cotton

2. Rayon

3. Silk

4. Polyster

Concept Questions :-

Classification - methods of polymerization ,copolymerization
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Bakelite is prepared by the reaction between

1. urea and formaldehyde

2. ethylene glycol

3. phenol and formaldehyde

4. tetramethylene glycol

Concept Questions :-

Polymers: natural/synthetic, Biodegradable/non-biodegradable
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Terylene is a condensation polymer of ethylene glycol and

(a) benzoic acid

(b) phthalic acid

(c) salicylic acid

(d) terephthalic acid

Concept Questions :-

Classification - methods of polymerization ,copolymerization
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