Bakelite is prepared by the reaction between :
1. Urea and formaldehyde.
2. Ethylene glycol.
3. Phenol and formaldehyde.
4. Tetramethylene glycol.
Terylene is a condensation polymer of ethylene glycol and
(1) Benzoic acid
(2) Phthalic acid
(3) Salicylic acid
(4) Terephthalic acid
Melamine plastic crockery is a copolymer of:
1. HCHO and melamine
2. HCHO and ethylene
3. Melamine and ethylene
4. None of the above
The correct structure of acrilan is:
1.
2.
3.
4.
Of the following which one is classified as polyester polymer ?
(1) Bakelite
(2) Melamine
(3) Nylon-66
(4) Terylene
Monomer of neoprene is:
(1)
(2)
(3)
(4)
Monomer of is
(a) 2-methyl propene
(b) styrene
(c) propylene
(d) ethene
Polymerisation of chloroethylene gives the polymer:
1. Polythene
2. PVC
3. Teflon
4. Nylon
Glyptal is polymer of:
1. Ethylene glycol and phthalic acid
2. Eethylene and ohthalic acid
3. Phthalic acid and acetylene
4. None of the above
Example of addition polymer is:
(1) Buna-S
(2) Bakelite
(3) Nylon-6
(4) Dacron