Polymer Technology Linear polymers are normally Having extremely high softening point Elastometric Thermosplastic Thermosetting Having extremely high softening point Elastometric Thermosplastic Thermosetting ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Addition polymerisation takes place either by a free radical mechanism or ionic machanism depending on the reagents used. Free radical polymerisation is catelyzed by __________ , which decompose to give free radicals. Organic peroxides None of these Hydroflouric acid Sulphuric acid Organic peroxides None of these Hydroflouric acid Sulphuric acid ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Alkyd resin e.g., glyptal resin formed by phthalic anhydride and glycerene is not used For surface coating of automobiles & air crafts For film forming materials For fibre making As plasticiser for PVC & nitrocellulose For surface coating of automobiles & air crafts For film forming materials For fibre making As plasticiser for PVC & nitrocellulose ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Natural rubber is obtained from latex, which is a colloidal dispersion of rubber in water. Which of the following is used as a coagulant in latex? Potassium alum Ammonium alum Both A & B Neither A nor B Potassium alum Ammonium alum Both A & B Neither A nor B ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Thermosplastic materials None of these Do not soften on application of heat Are heavily branched molecules Are solvent insoluble None of these Do not soften on application of heat Are heavily branched molecules Are solvent insoluble ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Low density polythene as compared to high density polythene is More flexible Tougher Chemically inert Harder More flexible Tougher Chemically inert Harder ANSWER DOWNLOAD EXAMIANS APP
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