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SAI International School


                                                     Class – VIII
                                               Subject – Chemistry


                               Topic – SYNTHETIC FIBRES AND PLASTICS
        Sub-Topic – Characteristics of Synthetic Fibres, Plastics and Types of Plastics




                                               HOME ASSIGNMENT

        Objective:


           i.   Polycot is obtained by mixing:
               a. Nylon and Wool            b. Polyester and Wool

               c. Nylon and cotton          d. Polyester and Cotton

          ii.   Which of the following is a thermosetting plastic?
               a. Melamine           b. Polythene          c. PVC        d. Nylon
          iii.   The materials which is commonly used for making kitchen container:
               a. PVC                b. Acrylic

               c. Teflon             d. PET

         iv.   Pick the wrong option:
               a. Melamine           b. PVC
               c. Teflon             d. Bakelite

          v.   Which one of the following is biodegradable?
               a. Acrylic sportswear        b. Woollen Shawl

               c. Plastic Bag               d. Aluminium Can



        Subjective:


        Q. No.                                      Questions                                         Marks
           1.     Plastics  which  do  not  get  deformed  or  softened  on  heating,  are  called:      1
                  _____________.
           2.     A bucket of plastic gets rusted as it is highly reactive. (True/False)                 1
           3.     State two disadvantages of Synthetic fibres.                                           1
           4.     Explain  how,  manufacturing  of  synthetic  fibres  is  actually  helping  in  the    3
                  conservation of forests.
           5.        a)  What are the two common types of plastics?                                      3
                     b)  Give two examples of each type.                                              (1+2)








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