Question

What is a colloid in chemistry​

Answer 1

Colloid has particles bigger than that of solution and larger than that of suspension. It shows tyndall effect unlike solution and does not settle down unlike suspension. Its particles are between 1 to 1000 manometer.

Answer 2

Colloid, any substance consisting of particles substantially larger than atoms or ordinary molecules but too small to be visible to the unaided eye; more broadly, any substance, including thin films and fibres, having at least one dimension in this general size range, which encompasses about 10−7 to 10−3 cm.