Fill in the blanks

i) Synthetic Fibres are also called as ______ Fibres.

ii) Synthetic Fibres are synthesized from a raw material called ______

iii) Like synthetic fiber, plastic also ______

iv) Clothing labels are______

a) Required by law

b) Identify fabric content

c) Both a and b

d) None of the above

v) Rayon is made of

a) Coal b) Oxygen c) Flax d) Cellulose

vi) A silk fiber’s smooth surface absorbs light

a) yes b) no c) can’t say

(i) man-made

Reason: They are prepared in the labs by the humans with the help of chemicals.

(ii) petrochemicals

Reason: Synthetic Fibres are made up of polymers who are further made up of petrochemicals.

(iii) polymers

Reason: Polymers are made up of large no of monomers and synthetic Fibres and plastic are both made up of monomers.

(iv) c

Reason: According to the law issued by the government the tag should be there in the cloth that will help identify the texture, size and the fabric content.

(v) d

Reason: Rayon is made from the chemical treatment of wood pulp and cellulose forms the wood pulp.

(vi) b

Reason: Silk surface has very luster due to which it sends back all the rays falling on it.