Saturday, May 5, 2018

Chemistry 12

നിത്യോപയോഗ വസ്തുക്കളിൽ ഉള്ള ആസിഡുകൾ, രാസവസ്തുക്കൾ, ഓർഗാനിക് കെമിസ്ട്രി, പ്ലാസ്റ്റിക്ക്, റബർ തുടങ്ങിയവയുമായി ബന്ധപ്പെട്ട ചോദ്യങ്ങളാണ് ഇന്നത്തെ പാഠത്തിൽ
  • Acid present in Tomato, Banana, Onion and Choclate
                 Oxalic acid
  • Acid present in Tarmarind and Grapes
                 Tartaric acid
  • Acid present in Apple 
                 Malic acid
  • Acid present in Oil and Fat
                 Stearic acid
  • Acid present in Tapiocca
                 Hydrocyanic acid (Prussic Acid)
  • Acid present in Coconut
                 Capric acid
  • Acid present in Rice
                 Phytic acid
  • Acid present in Ant and Honey bee
                 Formic acid
  • Acid present in Lemon and Orange
                 Citric acid
  • Acid present in meat
                 Amino acid
  • Acid present in Soil
                 Humic acid
  • Chemical present in Cofee and Cola
                 Caffein
  • Chemical present in pepper
                 Piperine
  • Chemical present in Ginger
                 Gingerine
  • Chemical present in Green Chilly
                 Capsacin
  • Chemical present in Turmeric
                 Curcumin
  • Compounds of Hydrogen and Carbon are known as
                 Hydrocarbon
  • Compounds of Hydrogen, Oxygen and Carbon are known as
                 Carbohydrates
  • Examples of hydrocarbons
                 Petroleum (Liquid), Natural gas (Gas)
  • Major components of LPG
                 Butane, Propane
  • Chemical which is added to LPG to detect leakage
                 Ethyl Mercaptan
  • Weight of LPG Gas cylinder using for domestic purpose
                 14.2 Kg
  • Major component of compressed natural gas and Biogas
                 Methane
  • Fossil fuel which cause least pollution
                 Natural Gas
  • Burning of coal mainly produces
                 Sulphur dioxide
  • First artificial element
                 Technetium
  • First artificial plastic
                 Bakelite
  • First artificial sugar
                 Saccharin
  • First artificial rubber
                 Neoprene
  • Chemical used for preserving biological specimen is
                 Formaldehyde
  • Process of slow decomposition of organic compounds brought about by enzymes is known as
                 Fermentation
  • Protein is composed of
                 Carbon, Hydrogen, Nitrogen and Oxygen
  • Acid used to detect the presence of protein
                 Nitric acid
  • Solution which is used to detect glucose in Urine
                 Benedict's solution
  • Material using to make bullet proof jackets
                 Kevlar
  • Compound formed by the reaction of Acids with Alcohols
                 Esters
  • Functional group present in Alcohols
                 -OH
  • Simplest alcohol
                 Methanol
  • Alcohol produced by fermentation of sugar
                 Ethanol
  • Content of alcoholic beverages (Grain alcohol)
                 Ethyl Alcohol
  • Pure alcohol can be obtained from wine by process of
                 Distillation
  • Alcohol poisoning is mainly due to the presence of
                 Methanol (Methyl alcohol)
  • Which is known as Wood spirit
                 Methanol
  • Which is known as White tar
                 Naphthalene
  • Process by which polymers and plastics are formed from monomers is called as
                 Polymerization
  • Examples of natural polymers
                 Cellulose, Silk
  • Examples of artificial polymers
                 Rayon, Teflon, Nylon
  • Most abundant carbohydrate or organic compound present in nature
                 Cellulose
  • Chemically paper is
                 Cellulose
  • Monomers in Insulin are
                 Amino Acids
  • Raw materials used to make first artificial plastic bakelite
                 Phenol, Formaldehyde
  • Solvent of plastic
                 Chloroform
  • Plastic which undergo chemical change is
                 Thermosetting plastics (Polyester, Bakelite)
  • Plastic which undergo physical change is
                 Thermoplastics (Polythene, Nylon)
  • Reusable plastic is
                 Thermoplastics
  • Poisonous gas produced while burning plastic is
                 Dioxin
  • Plastic used for coating of non stick tensiles
                 Teflon (Poly tetra fluoro ethylene)
  • Chemical name of PVC
                 Poly Vinyl Chloride
  • Monomers used in Rubber
                 Isoprene
  • Solvent of rubber
                 Benzene (C6H6)
  • Examples of synthetic rubbers
                 Neoprene, Thiokol, Styrene Butadene Rubber
  • Structure of Benzene was discovered by
                 August Kekule
  • Rubber used to make hoses
                 Thiokol
  • Substances added to increase the storage time of food
                 Preservatives
  • Cause of tears while cutting onion is due to the presence of 
                 Sulphur
  • Smell of perfumes are due to the presence of 
                 Esters
  • Molecules that inhibits the oxidation of other molecules is known as
                 Antioxidants
                                                                           (To be Continued...)

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