Use app×
Join Bloom Tuition
One on One Online Tuition
JEE MAIN 2025 Foundation Course
NEET 2025 Foundation Course
CLASS 12 FOUNDATION COURSE
CLASS 10 FOUNDATION COURSE
CLASS 9 FOUNDATION COURSE
CLASS 8 FOUNDATION COURSE
0 votes
18.7k views
in Chemistry by (61.9k points)

Explain what is observed when : 

(i) A beam of light is passed through a colloidal solution. 

(ii) NaCl solution is added to hydrated ferric oxide sol. 

(iii) Electric current is passed through a colloidal solution.

1 Answer

+1 vote
by (34.7k points)
selected by
 
Best answer

(i) Scattering of light by the colloidal particles takes place and the path of Iight becomes illuminated. This is called Tyndall effect.

(ii) The positively charged colloidal particles of hydrated ferric oxide sol get coagulated by the oppositely charged ions provided by electrolyte NaCl.

(iii) On passing direct current, the colloidal particles move towards the oppositely charged electrode where they lose their charge and get coagulated.

Welcome to Sarthaks eConnect: A unique platform where students can interact with teachers/experts/students to get solutions to their queries. Students (upto class 10+2) preparing for All Government Exams, CBSE Board Exam, ICSE Board Exam, State Board Exam, JEE (Mains+Advance) and NEET can ask questions from any subject and get quick answers by subject teachers/ experts/mentors/students.

Categories

...