325019 Assertion :
Polyamides are best used as fibres because of high tensile strength.
Reason :
Strong intermolecular forces (like hydrogen bonding within polyamides) lead to close packing of chains and increase the crystalline character, hence, provide high tensile strength to polymers.

325020 Which of the following is an example of fibre polymer?

325021 Statement A :
Bakelite is a thermosetting polymer
Statement B :
Bakelite can be melted again and again without any change.

325022 Which among the following polymer does not show cross linking in it?

325023 Statement A :
Thermosetting polymers undergo permanent change on heating.
Statement B :
On heating, extensive cross-links formed between polymer chains.

325019 Assertion :
Polyamides are best used as fibres because of high tensile strength.
Reason :
Strong intermolecular forces (like hydrogen bonding within polyamides) lead to close packing of chains and increase the crystalline character, hence, provide high tensile strength to polymers.

325020 Which of the following is an example of fibre polymer?

325021 Statement A :
Bakelite is a thermosetting polymer
Statement B :
Bakelite can be melted again and again without any change.

325022 Which among the following polymer does not show cross linking in it?

325023 Statement A :
Thermosetting polymers undergo permanent change on heating.
Statement B :
On heating, extensive cross-links formed between polymer chains.

325019 Assertion :
Polyamides are best used as fibres because of high tensile strength.
Reason :
Strong intermolecular forces (like hydrogen bonding within polyamides) lead to close packing of chains and increase the crystalline character, hence, provide high tensile strength to polymers.

325020 Which of the following is an example of fibre polymer?

325021 Statement A :
Bakelite is a thermosetting polymer
Statement B :
Bakelite can be melted again and again without any change.

325022 Which among the following polymer does not show cross linking in it?

325023 Statement A :
Thermosetting polymers undergo permanent change on heating.
Statement B :
On heating, extensive cross-links formed between polymer chains.

325019 Assertion :
Polyamides are best used as fibres because of high tensile strength.
Reason :
Strong intermolecular forces (like hydrogen bonding within polyamides) lead to close packing of chains and increase the crystalline character, hence, provide high tensile strength to polymers.

325020 Which of the following is an example of fibre polymer?

325021 Statement A :
Bakelite is a thermosetting polymer
Statement B :
Bakelite can be melted again and again without any change.

325022 Which among the following polymer does not show cross linking in it?

325023 Statement A :
Thermosetting polymers undergo permanent change on heating.
Statement B :
On heating, extensive cross-links formed between polymer chains.

325019 Assertion :
Polyamides are best used as fibres because of high tensile strength.
Reason :
Strong intermolecular forces (like hydrogen bonding within polyamides) lead to close packing of chains and increase the crystalline character, hence, provide high tensile strength to polymers.

325020 Which of the following is an example of fibre polymer?

325021 Statement A :
Bakelite is a thermosetting polymer
Statement B :
Bakelite can be melted again and again without any change.

325022 Which among the following polymer does not show cross linking in it?

325023 Statement A :
Thermosetting polymers undergo permanent change on heating.
Statement B :
On heating, extensive cross-links formed between polymer chains.