The purest natural form of cellulose is _______. a) rayon b)cotton c)wool d)silk

The purest natural form of cellulose is _______.
a) rayon b)cotton c)wool d)silk
by

1 Answer

Answer :

b)cotton
by

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The non-stick coating on pan and other cooking utensils is made from __________. a) rayon b)Teflon c)melamine d)PVC

Description : The non-stick coating on pan and other cooking utensils is made from __________. a) rayon b)Teflon c)melamine d)PVC

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Description : Which of the following is not a natural fibre? (A) Silk (B) Viscose rayon (C) Wool (D) Cotton

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Which of the following is not part of 4R’s formula a) reduce b)recycle c)recover d)reinvent

Description : Which of the following is not part of 4R’s formula a) reduce b)recycle c)recover d)reinvent

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The synthetic plastic used for making insulation cover in electrical wires is ________. a ) Bakelite b)melamine c)Polyvinyl Chloride d)Poly styrene

Description : The synthetic plastic used for making insulation cover in electrical wires is ________. a ) Bakelite b)melamine c)Polyvinyl Chloride d)Poly styrene

Last Answer : c)Polyvinyl Chloride

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Description : The first fully synthetic plastic was_________. a) Bakelite b)melamine c)Teflon d)polythene

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Description : Example of natural plant fibre: a. Silk b. Cotton c. Viscose rayon d. Polyester

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Description : What do silk rayon wool have in common?

Last Answer : They all are used for clothing

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Description : Which of the following fibres is considered as the stron est natural fibre? (1) Cotton (2) Jute (3) Wool (4) Silk

Last Answer : (4) Silk Explanation: Ultrastrong spider silk is one of the toughest natural fibers known in nature. The light, flexible fiber is five times stronger by weight than high-grade steel and extremely stretchy, enlarging to snag incoming insects and other prey.

Which of the following is not a natural polymer? (1) Wool (2) Silk (3) Cotton (4) Teflon

Description : Which of the following is not a natural polymer? (1) Wool (2) Silk (3) Cotton (4) Teflon

Last Answer : (4) Teflon Explanation: Natural polymers occur in nature and can be extracted. They are often waterbased. Examples of naturally occurring polymers are silk, wool, DNA, cellulose, cotton and proteins.

Which of the following is a natural polyamide fibre? (A) Wool (B) Silk (C) Cotton

Description : Which of the following is a natural polyamide fibre? (A) Wool (B) Silk (C) Cotton

Last Answer : (A) Wool

Which of the following fibres is considered as the strongest natural fibre? (1) Cotton (2) Jute (3) Wool (4) Silk

Description : Which of the following fibres is considered as the strongest natural fibre? (1) Cotton (2) Jute (3) Wool (4) Silk

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Which of the following products is not derived from cellulose? (a) Rayon (d) Paper(b) Insulin (c) Gun cotton

Description : Which of the following products is not derived from cellulose? (a) Rayon (b) Insulin (c) Gun cotton (d) Paper

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Which of the following statements is false about cellulose? (a) It is a polymer of glucose molecules joined in β-1,4 linkages. (b) It is a major component of cotton. (c) It is used in the manufacture of Dacron fibres. (d) It is used in the manufacture of Rayon fibres

Description : Which of the following statements is false about cellulose? (a) It is a polymer of glucose molecules joined in β-1,4 linkages. (b) It is a major component of cotton. (c) It is used in the manufacture of Dacron fibres. (d) It is used in the manufacture of Rayon fibres

Last Answer : It is used in the manufacture of Dacron fibres.

Which synthetic fibre is known as artificial Silk? A. Nylon B. Rayon (Answer) C. Cotton D. Terylene

Description : Which synthetic fibre is known as artificial Silk? A. Nylon B. Rayon (Answer) C. Cotton D. Terylene

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Description : Retting is used in the processing of which of the following fibres: a. Cotton b. Linen c. Silk d. Viscose rayon

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Description : Which of the following is known as the Golden Fiber? a. Jute b. Cotton c. Silk d. Wool

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Which of the following is a protein? (1) Wool (2) Starch (3) Natural rubber (4) Cellulose

Description : Which of the following is a protein? (1) Wool (2) Starch (3) Natural rubber (4) Cellulose

Last Answer : (3) Natural rubber Explanation: Natural Rubber is an elastic substance obtained from the latex sap of trees, especially those trees which belong to the genera Hevea and Ficus.

38. Which of the following statements is false? (1) Both starch and cellulose are polymers of glucose (2) Artificial silk is derived from cellulose (3) Nylon-66 is an example of elastomer (4) The repeat unit in natural rubber is isoprene

Description : 38. Which of the following statements is false? (1) Both starch and cellulose are polymers of glucose (2) Artificial silk is derived from cellulose (3) Nylon-66 is an example of elastomer (4) The repeat unit in natural rubber is isoprene

Last Answer : Nylon-66 is an example of elastomer

The chief raw material used for manufacturing Rayon is : (1) Nylon (2) Cellulose (3) Silicon (4) Radium and Argon

Description : The chief raw material used for manufacturing Rayon is : (1) Nylon (2) Cellulose (3) Silicon (4) Radium and Argon

Last Answer : (2) Cellulose Explanation: Rayon is a manufactured regenerated cellulose fiber. Because it is produced from naturally occurring polymers, it is neither a truly synthetic fiber nor a natural fiber; it is a semi-synthetic or artificial fiber.

Viscose rayon is (A) Cellulose nitrate(B) Regenerated cellulose nitrate(C) Regenerated cellulose acetate(D) None of these

Description : Viscose rayon is (A) Cellulose nitrate (B) Regenerated cellulose nitrate (C) Regenerated cellulose acetate (D) None of these

Last Answer : (D) None of these

Pick out the wrong statement. (A) Denier is defined as weight in gm of 9000 metres length of a fibre, while tex is defined as weight in gm of 1000 metres length of fibre (B) Crimp is a measure of the difference between the length of the straightened and unstraightened fibre (C) Dacron fibres, acrylic fibres, viscose rayon fibres & cellulose acetate fibres are all prepared by wet spinning (D) Nylon fibres have greater water absorption capacity than polyester fibres

Description : Pick out the wrong statement. (A) Denier is defined as weight in gm of 9000 metres length of a fibre, while tex is defined as weight in gm of 1000 metres length of fibre (B) ... fibres are all prepared by wet spinning (D) Nylon fibres have greater water absorption capacity than polyester fibres

Last Answer : (C) Dacron fibres, acrylic fibres, viscose rayon fibres & cellulose acetate fibres are all prepared by wet spinning

The synthetic fibres produced from __________ are known as rayon. (A) Lignin (B) Cellulose (C) Polyamides (D) Ethylene glyco

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Viscose rayon is chemically (A) Cellulose nitrate (B) Regenerated cellulose nitrate (C) Cellulose acetate (D) Regenerated cellulose acetate

Description : Viscose rayon is chemically (A) Cellulose nitrate (B) Regenerated cellulose nitrate (C) Cellulose acetate (D) Regenerated cellulose acetate

Last Answer : (D) Regenerated cellulose acetate

Viscose rayon is (A) Cellulose nitrate (B) Regenerated cellulose nitrate (C) Regenerated cellulose acetate (D) None of these

Description : Viscose rayon is (A) Cellulose nitrate (B) Regenerated cellulose nitrate (C) Regenerated cellulose acetate (D) None of these

Last Answer : (D) None of these

The chief raw material used for manufacturing Rayon is : (1) Nylon (2) Cellulose (3) Silicon (4) Radium and Argon

Description : The chief raw material used for manufacturing Rayon is : (1) Nylon (2) Cellulose (3) Silicon (4) Radium and Argon

Last Answer : Cellulose

Why is rayon called artificial silk? -Chemistry 9th

Description : Why is rayon called artificial silk? -Chemistry 9th

Last Answer : Rayon is a synthetic fiber or man-made fiber or artificial fiber as it is prepared from the natural raw material called cellulose. ... The kind of rayon fibers which imitate the feel and texture of natural silk is therefore termed as 'artificial silk'.

The material known in commerce as Terylene is a – (1) Synthetic fibre (2) Natural fibre (3) Modified natural fibre (4) Blend of cotton and silk

Description : The material known in commerce as Terylene is a – (1) Synthetic fibre (2) Natural fibre (3) Modified natural fibre (4) Blend of cotton and silk

Last Answer : (1) Synthetic fibre Explanation: Terylene is the name for a synthetic polyester fibre. It is a synthetic polyester fibre or fabric based on terephthalic acid, characterized by lightness and crease resistance and used for clothing, sheets, ropes, sails, etc.

The material known in commerce as Terylene is a (1) Synthetic fibre (2) Natural fibre (3) Modified natural fibre (4) Blend of cotton and silk

Description : The material known in commerce as Terylene is a (1) Synthetic fibre (2) Natural fibre (3) Modified natural fibre (4) Blend of cotton and silk

Last Answer : Synthetic fibre

Which of the following fibres catches fire least? (1) Nylon (2) Cotton (3) Rayon (4) Terricot

Description : Which of the following fibres catches fire least? (1) Nylon (2) Cotton (3) Rayon (4) Terricot

Last Answer : (2) Cotton Explanation: The fibre least prone to catch fire is cotton. Fabrics with more of the fiber surface area exposed to air have more oxygen available to support, burning and therefore burn more easily. Thus, thin, gauzy fabrics, lace, or brushed fabrics can be very flammable.

A polymeric substance used to make parachute is – (1) Rayon (2) Viscose (3) Cotton (4) Terylene

Description : A polymeric substance used to make parachute is – (1) Rayon (2) Viscose (3) Cotton (4) Terylene

Last Answer : (2) Viscose Explanation: Viscose is a viscous organic liquid used to make rayon and cellophane. Viscose is also used as shorthand for Viscose Rayon, thus becoming synonymous with rayon, a soft man-made fibre commonly used in dresses, linings shirts, shorts, coats, jackets, and other outer wear.

Rayon is superior to cotton in making gauge for wound treatment, because rayon (A) Is a synthetic polymer (B) Does not stick to the wound unlike cotton (C) Can absorb over 90% of its own weight of water (D) Both (B) and (C)

Description : Rayon is superior to cotton in making gauge for wound treatment, because rayon (A) Is a synthetic polymer (B) Does not stick to the wound unlike cotton (C) Can absorb over 90% of its own weight of water (D) Both (B) and (C)

Last Answer : (B) Does not stick to the wound unlike cotton

For the first time, scientists have developed which fabric from the flax plant? a. Cotton b. Rayon c. Nylon d. Linen

Description : For the first time, scientists have developed which fabric from the flax plant? a. Cotton b. Rayon c. Nylon d. Linen

Last Answer : d. Linen

A polymeric substance used to make parachute is (1) Rayon (2) Viscose (3) Cotton (4) Terylene

Description : A polymeric substance used to make parachute is (1) Rayon (2) Viscose (3) Cotton (4) Terylene

Last Answer : Viscose

Which of the following fibres catches fire least ? (1) Nylon (2) Cotton (3) Rayon (4) Terricot

Description : Which of the following fibres catches fire least ? (1) Nylon (2) Cotton (3) Rayon (4) Terricot

Last Answer : Cotton

Name the process by which silk and wool fibres are made into fabric. -Science-7

Description : Name the process by which silk and wool fibres are made into fabric. -Science-7

Last Answer : Wool and Silk are made into fabric by the process of weaving.

Silk fibre chemically is – (1) Carbohydrate (2) Fat (3) Protein (4) Cellulose

Description : Silk fibre chemically is – (1) Carbohydrate (2) Fat (3) Protein (4) Cellulose

Last Answer : (3) Protein Explanation: Silk is a natural protein fibre, some forms of which can be woven into textiles. The protein fibre of silk is composed mainly of fibroin and produced by ... fibre, which allows silk cloth to refract incoming light at different angles, thus producing different colours.

Silk fibre chemically is : (1) Carbohydrate (2) Fat (3) Protein (4) Cellulose

Description : Silk fibre chemically is : (1) Carbohydrate (2) Fat (3) Protein (4) Cellulose

Last Answer : Protein

Which is the purest form of natural water ? -SST 10th

Description : Which is the purest form of natural water ? -SST 10th

Last Answer : Rainwater is the purest form of natural water .

What name is used for cotton wool that is used to mop up blood?

Description : What name is used for cotton wool that is used to mop up blood?

Last Answer : That's called a 'swab'.

Cotton Wool Holder?

Description : Cotton Wool Holder?

Last Answer : form_title= Cotton Wool Holder form_header= Keep your cotton safe with a holder. How much will you need the holder to hold?*= _ [50] What shape would you like the holder?*= _ [50] How many holders do you need?*= {1, 2, 3, 4, 5, More than 5}

What do wool ryon and cotton in common?

Description : What do wool ryon and cotton in common?

Last Answer : They are fibers.

Which of the following is largely used in textile industries in India? (1) Cotton (2) Wool (3) Synthetic fibres (4) Jute

Description : Which of the following is largely used in textile industries in India? (1) Cotton (2) Wool (3) Synthetic fibres (4) Jute

Last Answer : (1) Cotton Explanation: Cotton is a soft, fluffy staple fiber that grows in a boll, or protective capsule, around the seeds of cotton plants of the genus Gossypium which is most often spun ... is used in fishing nets, coffee filters, tents, explosives manufacture, cotton paper, and in bookbinding.

Which of the following is the most widely used heat insulating material for pipelines carrying steam? (A) Tar dolomite bricks followed by asbestos (B) Fireclay refractory followed by aluminium sheet (C) Cotton followed by aluminium foil (D) 85% magnesia cement and glass wool

Description : Which of the following is the most widely used heat insulating material for pipelines carrying steam? (A) Tar dolomite bricks followed by asbestos (B) Fireclay refractory followed by aluminium sheet (C) Cotton followed by aluminium foil (D) 85% magnesia cement and glass wool

Last Answer : (D) 85% magnesia cement and glass wool

First Aid Kit should contain? a. Cotton Wool, Bandage b. Pain Relievers, Medicines c. Scissors, Gloves, Antacids d. All the above

Description : First Aid Kit should contain? a. Cotton Wool, Bandage b. Pain Relievers, Medicines c. Scissors, Gloves, Antacids d. All the above

Last Answer : d. All the above

First Aid it should contain? a. Cotton Wool, Crepre bandage b. Sterile dressing, pain reliever c. Scissors, Gloves, Antacids d. All the above

Description : First Aid it should contain? a. Cotton Wool, Crepre bandage b. Sterile dressing, pain reliever c. Scissors, Gloves, Antacids d. All the above

Last Answer : d. All the above

Paget’s disease shows in the late stages in jaws: a. Cotton wool. b. Ground glass. c. Orange peel. d. Beaten copped.

Description : Paget’s disease shows in the late stages in jaws: a. Cotton wool. b. Ground glass. c. Orange peel. d. Beaten copped.

Last Answer : a. Cotton wool.

What type of features does Paget’s disease ( osteitis deformans) show in the early stages in the oral mucosa: A. Cotton wool B. Ground glass C. Orange peel D. Beaten copped

Description : What type of features does Paget’s disease ( osteitis deformans) show in the early stages in the oral mucosa: A. Cotton wool B. Ground glass C. Orange peel D. Beaten copped

Last Answer : B. Ground glass

How do you prepare the floor of pulp chamber in molars: A. Swab and dry with cotton wool and excavate B. Use round bur to flatten the floor C. Under cut walls D. Use flat end fissure bur to make it levelled

Description : How do you prepare the floor of pulp chamber in molars: A. Swab and dry with cotton wool and excavate B. Use round bur to flatten the floor C. Under cut walls D. Use flat end fissure bur to make it levelled

Last Answer : A. Swab and dry with cotton wool and excavate

Which natural fiber is viscose rayon ?

Last Answer : Viscose rayon regenerated cellulosic fiber. That is to make cellulose cellulose with chemicals again. Some other regenerated fibers are modal , tensile.