Give reasons for the following observations: Leather gets hardened after tanning.
Animal skin (hide) is colloidal in nature and has positively charged particles, whereas tanning consists of negatively charged colloidal particles. When a hide is soaked in tanning, mutual coagulation takes place and as a result, leather gets hardened.
Solution for question: Give Reasons for the Following Observations: Leather Gets Hardened After Tanning. concept: Properties of Colloidal Solutions. For the courses PUC Karnataka Science, CBSE (Science)