Polymer

Q. Pre-weighed pieces of nylon, cotton, silk, and wool of equal measurements are taken and soaked in a beaker filled with water. After a few minutes, all cloth pieces were taken out of the beaker simultaneously and weighed again. Which of the following options places them in the correct order of their final weights?

1. Silk > Wool > Cotton > Nylon
2. Cotton > Silk > Nylon > Wool
3. Wool > Silk > Nylon > Cotton
4. Wool > Cotton > Silk > Nylon

Q.

The process by which large molecules of artificial fibres are made from small simple molecules is called __.

Q.

The word "polymer" means -

1. Chain of Steel

2. Many + units

3. Single + Unit

4. Chain of units

Q. Terylene is a popular form of

1. nylon
2. plastic
3. rayon
4. polyester

Q.

Match the type of fibre in column-I with their uses and characterstics in column-II
$\begin{array}{cc}\text{Column - I}& \text{Column - II}\\ \text{A. Acrylic}& \text{P. Contains repeating ester units}\\ \text{B. Cellulose}& \text{Q. Used for making sweaters}\\ \text{C. Polythene}& \text{R. Made up of large number of glucose units}\\ \text{D. Terylene}& \text{S. Used for manufacturing toys.}\end{array}$

1. $A\to Q,B\to P,C\to S,D\to R$

2. $A\to Q,B\to R,C\to S,D\to P$

3. $A\to S,B\to Q,C\to R,D\to P$

4. $A\to S,B\to R,C\to Q,D\to P$

Q. A is a long-chain molecule that is composed of a large number of repeating units.

1. molecule
2. fibre
3. polymer

Q. A is a long-chain molecule that is composed of a large number of repeating units.

1. molecule
2. fibre
3. polymer

Q. Which amongst the following is used to make the pipes used to supply water?

1. Bakelite
2. Polystyrene
3. Polyvinyl chloride
4. Melamine

Q. Match the monomers with their polymers.

1. Bakelite
2. Teflon
3. PET
4. Phenol
5. Tetrafluoroethene
6. Terephthalic acid

Q. A is a long-chain molecule that is composed of a large number of repeating units.

1. molecule
2. fibre
3. polymer