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Polymers Test - 28

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Polymers Test - 28
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Weekly Quiz Competition
  • Question 1
    1 / -0
    Which of the following is not a polymer ?
    Solution
    Sucrose is not a polymer. It is a disaccharide. It contains only 2 sugar units.

  • Question 2
    1 / -0
    Which of the following is not a polymer?
  • Question 3
    1 / -0
    The plastic product which can be remoulded is
    Solution
    Chain growth polymerization is involved in the manufacture of polymers such as polyethylene. Free radical mechanism for ethylene takes place at high temperature and pressure which can be remoulded by its repeating carbon chain.
  • Question 4
    1 / -0
    The people who weave the clothes are called:
    Solution
    People who weave clothes are called weavers. The person makes fabric by weaving fibre. Weaving is a method of textile production consisting of two different types of thread that are interlaced at right angles to form the cloth
  • Question 5
    1 / -0
    During long distance travel you would like to take drinking water in a bottle made up of :
    Solution
    Plastic have low toxicity due to their insolubility in water and because they are biochemically inert due to large molecular weight. Plastic products contain a variety of additives. Plastic is light, durable and doesn't react chemically with water.
  • Question 6
    1 / -0
    Woolen clothes are prepared from : 
    Solution
    Sheep have soft, woolly coats called a fleece. In the summertime the farmer cuts off the sheep's fleece. The fleece is then spun and made into WOOL. Clothes made from wool keep us warm
  • Question 7
    1 / -0
    The product that you would expect to obtain from catalytic hydrogenation of natural rubber is_________.
    Solution
    $$\text { Atactic }$$

    These are the polymers formed by free radical mechanisms with a random orientation of groups.

  • Question 8
    1 / -0
    Silk worm : Cocoon :: Wool: ?
    Solution
    Silk worm: Cocoon
    This cocoon is formed by silkworm out of silk fibres.
    Similarly, Wool is obtained from sheep's fleece which is a coat of wool.
  • Question 9
    1 / -0
    The polymer, which is the constituent of cotton is:
    Solution
    Cotton is 99% cellulose. Cellulose is a macromolecule. A polymer made up of a long chain of glucose molecules linked by $$C-1$$ to $$C-4$$ oxygen bridges with an elimination of water. Wood pulp, rayon, and cellophane are also constructed of cellulose polymers.
  • Question 10
    1 / -0
    Teflon is :
    Solution

    Hint: A polymer is formed from the condensation or addition of monomers.

    Correct Answer: Option C

    Explanation:

    Teflon is the result of the polymerization reaction of Tetrafluoroethylene.

    The reaction is as follows: 

    $$\mathop {{\text{n}}{{\text{F}}_2}{\text{C}}}\limits_{\text{ }}  = {\text{C}}{{\text{F}}_2}\xrightarrow{\Delta }\left( {{{\text{F}}_2}{\text{C}} - {\text{C}}{{\text{F}}_2}} \right){ _{\text{n}}}$$

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