Which of the following is a natural polymer?
A). Bakelite
B). Nylon
C). Polythene
D). Starch
Starch
Cotton, starch, cellulose and rubber are some of the naturally occurring polymers.Starch is a condensation polymer made up of hundreds of glucose monomers, which split out water molecules as they chemically combine. Starch is a member of the basic food group carbohydrates and is found in cereal grains and potatoes. It is also referred to as a polysaccharide, because it is a polymer of the monosaccharide glucose.
1. Question 15.1:What are polymers?
2. Helium gas is used in gas balloons instead of hydrogen gas because it is
3. Which one of the following is known as the brown coal
4. Which one is the lightest element in the periodic table
5. In arc welding, Argon is used because of its
6. Which one of the following elements is least likely to be found in commercial fertilisers?
7. Which of the following is the major constituent of LPG?
8. Who was the first man to go to space?
9. Which halide is used in making sensitive emulsion on photograhic film?