Organic ninjas

  Start practice on polymer  1. Which of the following is not a natural polymer Cellulose  Protein PVC Nucleic acid       ans :c 2. Which of the following is not correct regarding terylene Step-growth polymer Synthetic fiber Thermosetting plastic It is also called Dacron       ans :c 3.  Which is not a polymer? Sucrose Enzyme Starch Teflon       ans :a 4.  Which one of the following in used to make "non-stick”cookware PVC Polystyrene Polyethylene terephthalate Polytetrafluoroethylene       ans :d 5.  The polymer used for making contact lenses for eyes is Poly methyl methacrylate Polyethylene Polyethylacrylate Nylon 6       ans :a 6.  Characteristic property of Teflon is 2000 poise viscosity High surface tension Non-inflammable and resistant to heat Highly reac...

Start practice on Isomerism 1. Structural Isomerism 1. The total number of possible isomeric trimethylbenzene is.  4 6 2 3       ans : d 2. C7H9N has how many isomeric forms that contain a benzene ring. 7 5 6 4       ans : b 3. C6H5CN  and  C6H5NC  exhibt which type of isomerism Functional Dextro isomerism Position Metamerism       ans : a 4.  Find the pair of chain isomer  CH3CHBr2  and CH2BrCH2Br 1-propanl and 2-propanol Neo-pentane and isopentane Diethyl ether and methyl-n-propyl ether       ans : c 5. Functional isomerism is exhibited by the following pair of compounds Acetone, propionaldehyde Diethyl ether, methyl propyl ether  Butane, isobutane 1-butene, 2-butene       ans : a 6.The isomerism exhibited by alkyl cyanide and alkylisocyanide is Functional position T...

Start practice on hydrocarbon 1. Alkane 1. Which give CH4 when treated with water Aluminium carbide Calcium carbide Silicon carbide Iron carbide       ans : a 2. A reaction between methyl magnesium bromide and ethyl alcohol gives Butane Ethane Propane Methane       ans : d 3. Which of the following is a gem-dihalide ?       ans : a 4. Which of the following compounds will form a hydrocarbon on reaction with Grignard's reagent       ans : c 5. Iodoethane react with sodium in the presence of dry ether the product is Pentane Butane Butene Propane       ans : b 6. Which of the following has maximum boiling point ? n-octane iso-octane 2,2,3,3-tetramethyl butane n-butane       ans : a 7. Which of the following alkanes can be synthesized by the Wurtz reaction in good yield ?   ...