Acrylic

Q. Mark the correct answer.​

Rayon is different from synthetic fibres because ​

1. It has a silk like appearance.​
2. It is obtained from wood pulp.​
3. Its fibres can also be woven like those of natural fibres.​

Q. Why is rayon not considered a fully synthetic fibre?

Q.

Why is acrylic blended with wool?

Q. Which among the following synthetic fibres resembles wool?

1. Acrylic
2. Polyester
3. Rayon
4. Terylene

Q.

Unscramble the jumbled words given below, related to synthetic materials. (a) anory (b) lopmery (c) relyteen (d) laspict (e) yespolter (f) felton

Q.

Choose the correct option for the given statements.
Assertion: Polypropylene is an addition polymer
Reason: Polypropylene is polythene

1. Assertion is correct but reason is incorrect.
2. Assertion is incorrect but reason is correct.
3. Both assertion and reason are correct, reason is not the correct explanation of assertion
4. Both assertion and reason are correct, reason is correct explanation of assertion

Q. is a synthetic fibre which resembles wool.

1. Nylon
2. Acrylic
3. Rayon

Q. Imagine you are shopping clothes for your trek to the Himalayas. Which amongst the following fabrics will be a better choice for you?

1. Polycot
2. Terrycot
3. Rayon
4. Acrylic

Q.

Acrylic is -

1. natural fibre of wool.

2. synthetic fibre which has high resistance to shrinkage.

3. first artificial fibre.

4. natural fibre of silk.

Q. Question 22 (iv)
Fill in the blanks

(iv) A fibre similar to wool is ___.

Q. Question 22 (iii)
Fill in the blanks

(iii) The first fully synthetic fibre was ___

Q. The monomer of polystyrene is

1. Styrene
2. Vinyl chloride
3. None of the above
4. Teflon

Q. Why is rayon not considered a fully synthetic fibre?

Q.

Give a reason for the following:

Polyester is added to natural fiber cotton, to give terylene.

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

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

Q. Which of the following fibres are correctly paired with its source?

1. Rayon - manufactured from wood pulp
2. Acrylic - manufactured from petrochemicals
3. Nylon - manufactured from fleece of animals
4. Polyester - manufactured from bamboos

Q. Which of the following synthetic fibres is suitable for making winter clothes?

1. Terylene
2. Acrylic
3. Nylon
4. Rayon

Q. Why is rayon not considered a fully synthetic fibre?

Q. Which synthetic fibre is generally known as 'fake fur'?

1. Rayon
2. Acrylic
3. Nylon
4. Polyester

Q. Which synthetic fibre is generally known as 'fake fur'?

1. Nylon
2. Polyester
3. Rayon
4. Acrylic

Q. Which of the following synthetic fibres is suitable for making winter clothes?

1. Terylene
2. Acrylic
3. Nylon
4. Rayon

Q. is a synthetic fibre which resembles wool.

1. Acrylic
2. Rayon
3. Nylon

Q. Pick the odd one out.

1. Cotton
2. Wool
3. Silk
4. Acrylic

Q. Why is rayon not considered a fully synthetic fibre?

Q. __________ is a synthetic fibre which is also known as artificial wool.

1. Rayon
2. Acrylic
3. Nylon
4. Polyester

Q. is a synthetic fibre which resembles wool.

1. Acrylic
2. Rayon
3. Nylon

Q.

Match the entries of column I with column II.
$$\begin{array}{cc}\text{Column A}& \text{Column B}\\ \text{(a) Semi-synthetic fibre}& \text{(i) Cellulose}\\ \text{(b) Elastomer}& \text{(ii) Nylon}\\ \text{(c) Synthetic Fibre}& \text{(iii) Rayon}\\ \text{(d) Biopolymer}& \text{(iv) Rubber}\end{array}$$

1. (a) -(ii), (b) -(iv), (c) - (iii), (d) - (i)

2. (a) -(iii), (b) -(ii), (c) - (iv), (d) - (i)

3. (a) -(i), (b) -(ii), (c) - (iii), (d) - (iv)

4. (a) -(iii), (b) -(iv), (c) - (ii), (d) - (i)

Q. Write an activity to show that synthetic fibers are strogner than cotton fibers.

Q. Why is rayon not considered a fully synthetic fibre?

Q. Unscramble the jumbled words given below, related to synthetic materials.
(a) anory