Natural polymer amongst the following is
Natural polymer amongst the following is Options (a) cellulose (b) kodel (c) nylon (d) terylene Correct Answer: cellulose Explanation: It…
7 years ago
Chemistry
The first step in bakelite formation is
The first step in bakelite formation is Options (a) aromatic nucleophilic substitution (b) aromatic electrophilic substitution (c) condensation (d) electrophilic…
7 years ago
The polymer used in orthopaedic devices and in controlled drug release is
The polymer used in orthopaedic devices and in controlled drug release is Options (a) Orlon (b) PTFE (c) SBR (d)…
7 years ago
Which of the following is not correct regarding terylene
Which of the following is not correct regarding terylene Options (a) Step-growth polymer (b) Synthetic fibre (c) Condensation polymer (d)…
7 years ago
Which of the following is currently used as a tyre cord
Which of the following is currently used as a tyre cord Options (a) Terylene (b) Polyethylene (c) Polypropylene (d) Nylon-6,6…
7 years ago
Three dimensional molecules with cross links are formed in the case of a
Three dimensional molecules with cross links are formed in the case of a Options (a) thermoplastic (b) thermosetting plastic (c)…
7 years ago
The catalyst used in Ziegler process for polythylene manufacture
The catalyst used in Ziegler process for polythylene manufacture Options (a) consists of aluminium chloride and titanium dioxide (b) is…
7 years ago
Dimethyl terephthalate and ethylene glycol react to form
Dimethyl terephthalate and ethylene glycol react to form Options (a) neoprene (b) nylon-66 (c) decron (d) nylon-6 Correct Answer: decronExplanation:Dacron…
7 years ago
The monomer unit of polyvinyl chloride has the formula
The monomer unit of polyvinyl chloride has the formula Options (a) CH₃ – CH₂Cl (b) CH₂ = CH₂ (c) CHCl…
7 years ago
The common acid used in the manufacture of rayon and plastics is
The common acid used in the manufacture of rayon and plastics is Options (a) methanoic acid (b) ethanoic acid (c)…
7 years ago