Question

(i) Assertion: Vegetable tanned leather cannot adsorb a large amount of moisture.

Reason: Porous materials have higher surface area.

(ii) Assertion: Animal hide soaked in tannin results in hardening of leather.

Reason: Tanning occurs due to mutual coagulation.

(iii) Assertion: Adsorption of moisture by leather is physisorption.

Reason: It is a multimolecular process and is accompanied by low enthalpies of

adsorption

(iv) Assertion: Leathers tanned with vegetable tanning materials have smaller surface areas

Reason: The capillaries present in leather are reduced to smaller diameters

OR

Assertion: Leather absorbs different amount of moisture.

Reason: Some moisture is necessary to prevent cracking of leather.




please right answer baata do ​

Answer 1

Answer:

Explanation:

(iii) Assertion: Adsorption of moisture by leather is physisorption.

Reason: It is a multimolecular process and is accompanied by low enthalpies of

adsorption

(iv) Assertion: Leathers tanned with vegetable tanning materials have smaller surface areas

Reason: The capillaries present in leather are reduced to smaller diameters

OR

Assertion: Leather absorbs different amount of moisture.

Reason: Some moisture is necessary to prevent cracking of leather.

please right answer baata do ​