Polyvinyl chloride (PVC) is____________________?

Related Mcqs:

1. Poly Vinyl Chloride (P.V.C.) is a ______________ material ?

   A. Thermosetting
   B. Thermoplastic
   C. Fibrous
   D. Chemically active

2. Vinyl chloride (CH2 = CH.Cl) is produced by the thermal pyrolysis of ethylene dichloride at a pressure & temperature of __________________?

   A. 4 kgf/cm2 & 500°C
   B. 10 kgf/cm2 & 1000°C
   C. 40 kg/cm2 & 200°C
   D. 100 kgf/cm2 & 500°C

3. Sodium chloride content in sea water is about _______________ gms/liter?

   A. 2
   B. 10
   C. 25
   D. 50

4. Chemical formula of ‘salt cake’ is____________________?

   A. Na2SO4
   B. CaSO4
   C. MgSO4
   D. BaSO4

5. Process conditions in fermentator used for production of penicillin is____________________?

   A. 25°C, 2 atm
   B. 50°C, l0 atm
   C. 30°C, 200 mm Hg (absolute)
   D. 90°C, 45 atm

6. The major use of butadiene is____________________?

   A. As a plasticiser for unsaturated polyester
   B. In the manufacture of synthetic rubber
   C. As an anti-skinning agent in paint
   D. None of these

7. Main constituent of limestone is____________________?

   A. CaCO3
   B. MgCO3
   C. Na2CO3
   D. CaSO4

8. Main constituents of natural rubber is____________________?

   A. Polystyrene
   B. Polyisoprene
   C. Polybutadiene
   D. Polychlorophrene

9. Lindane is____________________?

   A. Not a fumigant
   B. BHC (Benzene Hexachloride) containing 99% γ-isomer
   C. A by-product of BHC manufacture
   D. Both B. and C.

10. In the production of soda ash by Solvay process, the by-product is____________________?

    A. CaCl2
    B. NH4Cl
    C. NH3
    D. NaOH