1. PVC stands for-
2. The fibers, such as nylon and polyester, that are made from chemical substances are called:
3. Lactose on hydrolysis gives
4. Which of the following is a biodegradable waste?
5. Glucose is a source of energy, which one of the following types of molecule is glucose?
6. Which one of the following polymer is used in making bullet proof vests?
7. Which of the following is an example of manmade fibre?
8. Phenol is used in the manufacture of which one of the following?
9. Which statements are correct?
1. In early 1930's Nylon was prepared from coal, water and air.
2. Nylon was the first synthetic fibre.
3. Nylon fibre was strong elastic and light.
1. In early 1930's Nylon was prepared from coal, water and air.
2. Nylon was the first synthetic fibre.
3. Nylon fibre was strong elastic and light.