Tag: substances in daily use

Questions Related to substances in daily use

Which of the following is a true statement?

chemistry substances in daily use polyester and acrylic rayon and nylon synthetic fibres

  1. Plastic is soluble in water

  2. Plastic is not a polymer

  3. Rayon is made from cellulose

  4. All plastics are fire-resistant

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Correct Option: C
Explanation:

Rayon is made from cellulose.

The first man - made polymer is :

chemistry substances in daily use polyester and acrylic rayon and nylon synthetic fibres

  1. PVC

  2. Teflon

  3. Bakelite

  4. Nylon

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Correct Option: C
Explanation:

Bakelite is a man made polymer by polymerization of phenol and formaldehyde. First Navoloc is formed and then Bakelite is formed.

Which of the following is known as regenerated fibre?

chemistry substances in daily use polyester and acrylic rayon and nylon synthetic fibres

  1. Nylon - 66

  2. Terylene

  3. Nylon - 6

  4. Rayon

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Correct Option: D
Explanation:

Rayon is known as regenerated fibre because it is manufactured from natural resources like cellulose present in wood pulp and short fibres.

Polyester consists of :

chemistry substances in daily use polyester and acrylic rayon and nylon synthetic fibres

  1. repeating unit of ether

  2. monomer of ester

  3. repeating units of ester

  4. monomer of ether

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Correct Option: C
Explanation:

Polyester is a category of polymers that contain ester in their main chain.


 Polyesters are used to make bottles, films, holograms, filters, dielectric film for capacitors, film insulation for wire and insulating tapes.

Hence the correct option is C.

______ is a popular polyester.

chemistry substances in daily use polyester and acrylic rayon and nylon synthetic fibres

  1. Plastic

  2. Polythene

  3. Rayon

  4. Terylene

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Correct Option: D
Explanation:

Terylene is a popular  trademark of synthetic polyester fibre. The fabric is based on terephthalic acid, characterized by lightness and crease resistance and used for clothing, sheets, ropes, sails, etc. 

PET is a familiar form of:

chemistry substances in daily use polyester and acrylic rayon and nylon synthetic fibres

  1. plastic

  2. polyester

  3. acrylic

  4. rayon

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Correct Option: B
Explanation:

PET is a very familiar form of polyester. PET is used for making bottles.

Which type of cloth dries faster in rainy season?

chemistry substances in daily use polyester and acrylic rayon and nylon synthetic fibres

  1. Cotton

  2. Wool

  3. Polyester

  4. Silk

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Correct Option: C
Explanation:

Synthetic fibres like polyesters dry up quickly.

Arrange the following fibers in the order of increasing strength:

Nylon, Cotton, Wool, Polyester, Silk

chemistry substances in daily use polyester and acrylic rayon and nylon synthetic fibres

  1. Silk, Wool, Cotton, Nylon, Polyester

  2. Wool, Silk, Cotton, Nylon, Polyester

  3. Cotton, Silk, Wool, Nylon, Polyester

  4. Nylon, Cotton, Silk, Wool, Polyester

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Correct Option: B
Explanation:

Tensile strength of polymer increases with increase in chain length and cross-linking of polymer chains. According to this, the tensile strength of wool < silk < cotton < nylon < polyester. Artificial fibers like nylon and polyester are designed specially to have more tensile strength.

Why PET is increasingly used for making bottles, jars and utensils?

chemistry substances in daily use polyester and acrylic rayon and nylon synthetic fibres

  1. It is light weight and very strong

  2. It is shatter proof

  3. Impact resistant

  4. All of the above

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Correct Option: D
Explanation:

PET is light weight, naturally colourless with high transparency, strong and impact resistant. It is shatter proof. All these properties of PET makes a highly more suitable material than glass for making bottles, jars, utensils etc.

A common form of polyester is :

chemistry substances in daily use polyester and acrylic rayon and nylon synthetic fibres

  1. Nylon

  2. Rayon

  3. PET

  4. Acrylic

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Correct Option: C
Explanation:

A common form of polyester is PET.