0

Guest

Courses New

Explain what is observed (i) when a beam of light is passed through a colloidal sol. (ii) an electrolyte, NaCl is added to hydrated ferric oxide sol. (iii) electric current is passed through a colloidal sol?

Explain what is observed (i) when a beam of light is passed through a colloidal sol. (ii) an electrolyte, NaCl is added to hydrated ferric oxide sol. (iii) electric current is passed through a colloidal sol?

Grade:

1 Answers

Aarti Gupta
askIITians Faculty 300 Points
9 years ago
1).When a beam of light is passed through a colloidal solution,then it undergoes scattering.This scattering of light is an phenomenon which is known as Tyndall effect.Due to this the path of beam gets illuminated.
2).When NaCl is added to hydrated ferric oxide solution,then positively chraged colloidal particles of ferric oxide gets coagulated by oppositively chraged Cl- ions which are provided by NaCl.
3).On passing electric current thgrough a colloidal solution,then it is observed that colloidal particles start moving towards the oppositively charged electrode where they lose their charge and gets coagulated.

Think You Can Provide A Better Answer ?

Other Related Questions on Physical Chemistry

View all Questions »

ASK QUESTION

Get your questions answered by the expert for free

Answer and earn gift vouchers

Win Gift vouchers upto Rs 500/-

View courses by askIITians

Design classes One-on-One in your own way with Top IITians/Medical Professionals

Click Here Know More

Complete Self Study Package designed by Industry Leading Experts

Click Here Know More

Live 1-1 coding classes to unleash the Creator in your Child

Click Here Know More

a Complete All-in-One Study package Fully Loaded inside a Tablet!

Click Here Know More