QBManager

CHXII05:SURFACE CHEMISTRY

320917 The colour of sky is due to

1 absorption of light by atmospheric gases

2 transmission of light

3 wavelength of scattered light

4 all of these

Explanation:

Scattering of light $\propto \frac{1}{λ^{4}}$
(Rayleigh scattering law)
The colour of the sky is blue due to least scattering of blue light, whose wavelength is maximum in the visible range of light.

KCET - 2008

CHXII05:SURFACE CHEMISTRY

320918 The right option for the statement "Tyndall effect is exhibited by"

1 Glucose solution

2 Urea solution

3 Starch solution

4

NaCl

solution

NEET - 2021

CHXII05:SURFACE CHEMISTRY

320919 The Brownian movement is due to

1 Temperature fluctuations within the liquid phase

2 Attraction and repulsion between charges on colloidal particles

3 Impact of molecules of the dispersion medium on colloidal particles

4 Convection currents

CHXII05:SURFACE CHEMISTRY

320920 The random motion of colloidal particles in the dispersion medium is known as

1 Tyndall effect

2 coagulation

3 adsorption

4 Brownian movement

CHXII05:SURFACE CHEMISTRY

320921 Assertion :
Colloidal solutions do not show Brownian motion.
Reason :
Brownian motion is responsible for stability of sols.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.

2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.

3 Assertion is correct but Reason is incorrect.

4 Assertion is incorrect but reason is correct.

CHXII05:SURFACE CHEMISTRY

320917 The colour of sky is due to

1 absorption of light by atmospheric gases

2 transmission of light

3 wavelength of scattered light

4 all of these

Explanation:

Scattering of light $\propto \frac{1}{λ^{4}}$
(Rayleigh scattering law)
The colour of the sky is blue due to least scattering of blue light, whose wavelength is maximum in the visible range of light.

KCET - 2008

CHXII05:SURFACE CHEMISTRY

320918 The right option for the statement "Tyndall effect is exhibited by"

1 Glucose solution

2 Urea solution

3 Starch solution

4

NaCl

solution

NEET - 2021

CHXII05:SURFACE CHEMISTRY

320919 The Brownian movement is due to

1 Temperature fluctuations within the liquid phase

2 Attraction and repulsion between charges on colloidal particles

3 Impact of molecules of the dispersion medium on colloidal particles

4 Convection currents

CHXII05:SURFACE CHEMISTRY

320920 The random motion of colloidal particles in the dispersion medium is known as

1 Tyndall effect

2 coagulation

3 adsorption

4 Brownian movement

CHXII05:SURFACE CHEMISTRY

320921 Assertion :
Colloidal solutions do not show Brownian motion.
Reason :
Brownian motion is responsible for stability of sols.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.

2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.

3 Assertion is correct but Reason is incorrect.

4 Assertion is incorrect but reason is correct.

CHXII05:SURFACE CHEMISTRY

320917 The colour of sky is due to

1 absorption of light by atmospheric gases

2 transmission of light

3 wavelength of scattered light

4 all of these

Explanation:

Scattering of light $\propto \frac{1}{λ^{4}}$
(Rayleigh scattering law)
The colour of the sky is blue due to least scattering of blue light, whose wavelength is maximum in the visible range of light.

KCET - 2008

CHXII05:SURFACE CHEMISTRY

320918 The right option for the statement "Tyndall effect is exhibited by"

1 Glucose solution

2 Urea solution

3 Starch solution

4

NaCl

solution

NEET - 2021

CHXII05:SURFACE CHEMISTRY

320919 The Brownian movement is due to

1 Temperature fluctuations within the liquid phase

2 Attraction and repulsion between charges on colloidal particles

3 Impact of molecules of the dispersion medium on colloidal particles

4 Convection currents

CHXII05:SURFACE CHEMISTRY

320920 The random motion of colloidal particles in the dispersion medium is known as

1 Tyndall effect

2 coagulation

3 adsorption

4 Brownian movement

CHXII05:SURFACE CHEMISTRY

320921 Assertion :
Colloidal solutions do not show Brownian motion.
Reason :
Brownian motion is responsible for stability of sols.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.

2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.

3 Assertion is correct but Reason is incorrect.

4 Assertion is incorrect but reason is correct.

CHXII05:SURFACE CHEMISTRY

320917 The colour of sky is due to

1 absorption of light by atmospheric gases

2 transmission of light

3 wavelength of scattered light

4 all of these

Explanation:

Scattering of light $\propto \frac{1}{λ^{4}}$
(Rayleigh scattering law)
The colour of the sky is blue due to least scattering of blue light, whose wavelength is maximum in the visible range of light.

KCET - 2008

CHXII05:SURFACE CHEMISTRY

320918 The right option for the statement "Tyndall effect is exhibited by"

1 Glucose solution

2 Urea solution

3 Starch solution

4

NaCl

solution

NEET - 2021

CHXII05:SURFACE CHEMISTRY

320919 The Brownian movement is due to

1 Temperature fluctuations within the liquid phase

2 Attraction and repulsion between charges on colloidal particles

3 Impact of molecules of the dispersion medium on colloidal particles

4 Convection currents

CHXII05:SURFACE CHEMISTRY

320920 The random motion of colloidal particles in the dispersion medium is known as

1 Tyndall effect

2 coagulation

3 adsorption

4 Brownian movement

CHXII05:SURFACE CHEMISTRY

320921 Assertion :
Colloidal solutions do not show Brownian motion.
Reason :
Brownian motion is responsible for stability of sols.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.

2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.

3 Assertion is correct but Reason is incorrect.

4 Assertion is incorrect but reason is correct.

CHXII05:SURFACE CHEMISTRY

320917 The colour of sky is due to

1 absorption of light by atmospheric gases

2 transmission of light

3 wavelength of scattered light

4 all of these

Explanation:

Scattering of light $\propto \frac{1}{λ^{4}}$
(Rayleigh scattering law)
The colour of the sky is blue due to least scattering of blue light, whose wavelength is maximum in the visible range of light.

KCET - 2008

CHXII05:SURFACE CHEMISTRY

320918 The right option for the statement "Tyndall effect is exhibited by"

1 Glucose solution

2 Urea solution

3 Starch solution

4

NaCl

solution

NEET - 2021

CHXII05:SURFACE CHEMISTRY

320919 The Brownian movement is due to

1 Temperature fluctuations within the liquid phase

2 Attraction and repulsion between charges on colloidal particles

3 Impact of molecules of the dispersion medium on colloidal particles

4 Convection currents

CHXII05:SURFACE CHEMISTRY

320920 The random motion of colloidal particles in the dispersion medium is known as

1 Tyndall effect

2 coagulation

3 adsorption

4 Brownian movement

CHXII05:SURFACE CHEMISTRY

320921 Assertion :
Colloidal solutions do not show Brownian motion.
Reason :
Brownian motion is responsible for stability of sols.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.

2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.

3 Assertion is correct but Reason is incorrect.

4 Assertion is incorrect but reason is correct.