Question:
Which of the following properties is responsible for the development of colour to the colloids?
Which of the following properties is responsible for the development of colour to the colloids?
Show Hint
Colloidal particles scatter light (Tyndall effect), which gives the coloured appearance.
Updated On: Oct 1, 2026
- Tyndall effect
- Brownian motion
- Electrophoresis
- Electroosmosis
Show Solution
Verified By Collegedunia
The Correct Option is A
Solution and Explanation
Step 1: Understanding the Concept:
Colloidal particles are 1-1000 nm, comparable to the wavelength of visible light. They therefore scatter light strongly.
Step 2: Detailed Explanation:
The Tyndall effect is the scattering of light by colloidal particles. The colour a colloid shows depends on which wavelengths are scattered and which pass through. Small particles scatter blue light more, so a sol often looks bluish from the side and reddish when viewed against the light.
Brownian motion, electrophoresis and electrokinetic effects describe motion and charge of particles, not how they treat light.
Step 3: Final Answer:
The colour is linked to the Tyndall effect, option (A).
Final Answer:
Light scattering by particles (Tyndall effect) gives colour. \[ \boxed{\text{(A) }\text{Tyndall effect}} \]
Colloidal particles are 1-1000 nm, comparable to the wavelength of visible light. They therefore scatter light strongly.
Step 2: Detailed Explanation:
The Tyndall effect is the scattering of light by colloidal particles. The colour a colloid shows depends on which wavelengths are scattered and which pass through. Small particles scatter blue light more, so a sol often looks bluish from the side and reddish when viewed against the light.
Brownian motion, electrophoresis and electrokinetic effects describe motion and charge of particles, not how they treat light.
Step 3: Final Answer:
The colour is linked to the Tyndall effect, option (A).
Final Answer:
Light scattering by particles (Tyndall effect) gives colour. \[ \boxed{\text{(A) }\text{Tyndall effect}} \]
Was this answer helpful?
0
0
Top MHT CET Chemistry Questions
- The temperature of $32^{\circ}C$ is equivalent to
- The heat of formation of water is $ 260\, kJ $ . How much $ H_2O $ is decomposed by $ 130\, kJ $ of heat ?
- If a metal crystallises in bcc structure with edge length of unit cell $4.29 \times 10^{-8}\, cm$ the radius of metal atom is
- Which of the following oxides can act both as an oxidising agent as well as reducing agent ?
- "The mass and energy both are conserved in an isolated system", is the statement of
View More Questions
Top MHT CET Colloids Questions
- Butter is an example of which type of colloid?
- Which of the following techniques is most suitable for determining the size and morphology of nanoparticles?
- Which one of the following is used as an eye lotion?
- Which of the following ionic species has highest precipitating power?
If a dilute solution of\( \mathrm{AgNO_3}\) is added to a dilute solution of excess \(\mathrm{NaI}\), then the species adsorbed on AgI colloidal particles is
View More Questions
Top MHT CET Questions
- During r- DNA technology, which one of the following enzymes is used for cleaving DNA molecule ?
- In non uniform circular motion, the ratio of tangential to radial acceleration is (r = radius of circle, $v =$ speed of the particle, $\alpha =$ angular acceleration)
- The temperature of $32^{\circ}C$ is equivalent to
- The line $5x + y - 1 = 0$ coincides with one of the lines given by $5x^2 + xy - kx - 2y + 2 = 0 $ then the value of k is
- The heat of formation of water is $ 260\, kJ $ . How much $ H_2O $ is decomposed by $ 130\, kJ $ of heat ?
View More Questions