[{"id":131048,"question":"How is the secondary structure of protein stabilized","choices":[{"text":"Through hydrogen bonding","value":"A"},{"text":"Through ionic bonding","value":"B"},{"text":"Through van der wall forces","value":"C"},{"text":"Through covalent bonding","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":131047,"question":"The protein which only yield amino acids and their derivatives","choices":[{"text":"Simple proteins","value":"A"},{"text":"Complex proteins","value":"B"},{"text":"Derived protein","value":"C"},{"text":"All of these","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":131046,"question":"When a nitrogeneous base combine with a sugar it is called","choices":[{"text":"Ribose","value":"A"},{"text":"Nucleotides","value":"B"},{"text":"Nucleoside","value":"C"},{"text":"None","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":131045,"question":"Which is the polymer that has amide linkage in its structure","choices":[{"text":"PVC","value":"A"},{"text":"Poly 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disaccharide?","choices":[{"text":"glucose","value":"A"},{"text":"sucrose","value":"B"},{"text":"fructose","value":"C"},{"text":"starch","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":131036,"question":"Monosaccharides belong to the group","choices":[{"text":"lipids","value":"A"},{"text":"fats","value":"B"},{"text":"proteins","value":"C"},{"text":"carbohydrates","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":131034,"question":"Vegetable oil are","choices":[{"text":"unsaturated fatty acids","value":"A"},{"text":"glycerides of unsaturated fatty acids","value":"B"},{"text":"glycerides of saturated fatty acids","value":"C"},{"text":"essential oil obtained from plants","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":131033,"question":"The fibre which is made form acrylonitrile as monomer","choices":[{"text":"PVC","value":"A"},{"text":"rayon fibre","value":"B"},{"text":"acrylic fibre","value":"C"},{"text":"polyester 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nature?","choices":[{"text":"fructose","value":"A"},{"text":"starch","value":"B"},{"text":"glucose","value":"C"},{"text":"cellulose","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":131021,"question":"Which of the following statements is incorrect about vitamins","choices":[{"text":"often function as coenzymes","value":"A"},{"text":"molecules contain at least one ring structure","value":"B"},{"text":"are often synthesized by the body","value":"C"},{"text":"are polyfunctional compounds","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":131020,"question":"Protein are classified into","choices":[{"text":"Simple protein","value":"A"},{"text":"Complex proteins","value":"B"},{"text":"Derived proteins","value":"C"},{"text":"All of these","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":131019,"question":"The three dimensional folding and twisting of a polypeptide chain give rise to","choices":[{"text":"Primary structure","value":"A"},{"text":"Secondary 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of</div>","choices":[{"text":"enzyme","value":"A"},{"text":"vitamin","value":"B"},{"text":"protein","value":"C"},{"text":"reactant","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":131014,"question":"Glycogen is stored in","choices":[{"text":"Animals","value":"A"},{"text":"Plants","value":"B"},{"text":"Soil","value":"C"},{"text":"None of these","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":131013,"question":"The development of disagreeable odour in fats or oil is called","choices":[{"text":"fragrance","value":"A"},{"text":"perfume","value":"B"},{"text":"rancidity","value":"C"},{"text":"smell","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":131012,"question":"The degree of unsaturation in fats or oils is usually measured by numbers of grams of iodine required by 100 grams of fat, this is called","choices":[{"text":"oil number","value":"A"},{"text":"saturation number","value":"B"},{"text":"iodine number","value":"C"},{"text":"un saturation 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vitamin?","choices":[{"text":"niacin","value":"A"},{"text":"riboflavin","value":"B"},{"text":"tyrosine","value":"C"},{"text":"ascorbic acid","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":131007,"question":"Which one of the following elements is not present in all proteins?","choices":[{"text":"carbon","value":"A"},{"text":"hydrogen","value":"B"},{"text":"nitrogen","value":"C"},{"text":"sulphur","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":131006,"question":"A polymeric substance that is formed in the liquid state and then hardened to a rigid solid is called a","choices":[{"text":"fibre","value":"A"},{"text":"plastic","value":"B"},{"text":"varnish","value":"C"},{"text":"polyamide resin","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":131005,"question":"A fibre which is made from acrylonitrile as monomer","choices":[{"text":"PVC","value":"A"},{"text":"rayon fibre","value":"B"},{"text":"acrylic fibre","value":"C"},{"text":"polyester 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called","choices":[{"text":"Thermoplastic","value":"A"},{"text":"Thermosetting","value":"B"},{"text":"Both a and b","value":"C"},{"text":"None","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":131000,"question":"Which is not a steroid","choices":[{"text":"Cholesterol","value":"A"},{"text":"Ergosterol","value":"B"},{"text":"Phospholipids","value":"C"},{"text":"None of these","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":130979,"question":"A fat or oil is characterised for extent of unsaturation by one of the following number,which one","choices":[{"text":"rancidity number","value":"A"},{"text":"acid number","value":"B"},{"text":"iodine number","value":"C"},{"text":"saponicfication number","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":130966,"question":"Naturally occuring lipids are called","choices":[{"text":"Fats","value":"A"},{"text":"Protein","value":"B"},{"text":"Steroids","value":"C"},{"text":"None","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":130965,"question":"Denaturation of protein means the structure of protein is distrupted. indicate which factor does not denature protein","choices":[{"text":"heating protein","value":"A"},{"text":"pH changes","value":"B"},{"text":"oxidising agent","value":"C"},{"text":"keeping pH 7.35","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":130964,"question":"The temp and pressure used for PVC polymerization is","choices":[{"text":"10<span style=\"color: rgb(84, 84, 84); font-family: arial, sans-serif; font-size: small;\">°C and 10 atm</span>","value":"A"},{"text":"20<span style=\"color: rgb(84, 84, 84); font-family: arial, sans-serif; font-size: small;\">°C and 20 atm</span>","value":"B"},{"text":"52<span style=\"color: rgb(84, 84, 84); font-family: arial, sans-serif; font-size: small;\">°C and 9 atm</span>","value":"C"},{"text":"100<span style=\"color: rgb(84, 84, 84); font-family: arial, sans-serif; font-size: small;\">°C and 10 atm</span>","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":130963,"question":"Which of the following polymers is used for weather resistant paints","choices":[{"text":"acrylic resins","value":"A"},{"text":"polyvinyl acetate","value":"B"},{"text":"polystyrene","value":"C"},{"text":"PVC","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":130962,"question":"Nylon, 6,6 is a condensation polymer of","choices":[{"text":"adipic acid and glycol","value":"A"},{"text":"phthalic acid and glycol","value":"B"},{"text":"adipic acid and hexaethylene diamine","value":"C"},{"text":"phthalic acid and hexaethylene diamine","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":130961,"question":"Which polymerization is free radical mechanism based","choices":[{"text":"Addition","value":"A"},{"text":"Condensation","value":"B"},{"text":"Both a and 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rgb(84, 84, 84); font-family: arial, sans-serif; font-size: small;\">°C and 9 atm</span>","value":"C"},{"text":"100<span style=\"color: rgb(84, 84, 84); font-family: arial, sans-serif; font-size: small;\">°C and 10 atm</span>","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":130957,"question":"The other name for cross linked polymers is","choices":[{"text":"Linear polymer","value":"A"},{"text":"Branched polymers","value":"B"},{"text":"Inter connected polymers","value":"C"},{"text":"None of these","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":130956,"question":"organic synthetic or man made polymers are plastics, rubber and fibre, Which is not a synthetic polymer","choices":[{"text":"silk","value":"A"},{"text":"polyester","value":"B"},{"text":"polyvinyl chloride (PVC)","value":"C"},{"text":"nylon","value":"D"},{"value":"E"}],"correctAnswer":1}]