- Topic: Introduction and Classification of Polymers
- Chapter: Polymers
- Number of Questions: 10
- Target: Class 12th Board Exam
Let’s Start
1. Plastics, Elastomers, Fibres, and Paints are the examples of
- Acids
- Biomolecules
- Polymers
- None of these
See Answer
Answer: 3. Polymers
Explanation: Polymers means multiple units, which are formed by the joining of repeating units on the large scale.
2. Cellulose, rubber are the examples:-
- Synthetic polymers
- semi-synthetic polymers
- Thermosetting polymers
- Natural polymer
See Answer
Answer: 4. Natural polymer
Explanation: Because these polymers are obtained from animals and plants.
3. What is polymer?
- repeating chain of monomers.
- only single monomers.
- co-polymer.
- Cross-linked monomers only.
See Answer
Answer: 1. repeating chain of monomers.
Explanation: It is a large molecule consisting of a large number of repeating chains of monomers.
4. Polymerisation means, ……………….
- Similar types of monomers are connected only.
- Monomers are converted into polymers.
- Branches and irregular monomers joined by addition.
- none of these
See Answer
Answer: 2. Monomers are converted into polymers
Explanation: It is the process when small molecules( or monomers) are combined chemically and produce a very large molecule.
5. Which polymer finds diverse uses as in clothing, shelter, electric fittings, substitute for wood and metals, household goods?
- Synthetic polymer
- Natural polymer
- Semi-synthetic polymer
- None
See Answer
Answer: 1. Synthetic polymers
Explanation: Synthetic polymers are man-made polymers. For example-PVC, Teflon.
6. Why synthetic fiber is strong because
- It has linear molecular links.
- Linked like hydrogen bonding.
- It has network-like structure.
- (1) and (2) Both.
See Answer
Answer: 4. (1) and (2) both.
Explanation: Synthetic fiber is the linear structure polymers generally and linear polymers are highly dense.
7. ……………….. is a polymer of glucose.
- Fructose
- Glucose
- Sucrose
- All the Above
See Answer
Answer: 2. Glucose
Explanation: Glucose is the basic unit of cellulose.
8. By which bond, monomers combine or are linked to each other.
- Ionic Bond
- Hydrogen Bond
- Covalent Bond
- Polar Bond
See Answer
Answer: 3. Covalent Bond
Explanation: Monomers are combined by covalent bond, due to electro-negativity between two monomers is too small, so the transfer occurs to form ions.
9. Which of the following is not a synthetic polymers?
- Rayon
- Polythene
- Nylon 6,6
- Buna-S
See Answer
Answer: 1. Rayon
Explanation: Rayon is a cellulose acetate, which is a semi-synthetic polymer.
10. Which polymers are mostly derived from natural polymers?
- Synthetic polymers
- Semi-Synthetic polymers
- Both (1) & (2)
- None of these
See Answer
Answer: 2. Semi-Synthetic polymer
Explanation: By chemical modification of natural polymers, semi-synthetic polymers are obtained.