Homogenesis the emulsion

Stabilizes the emulsion

Retards the dispersion of liquid in the liquid

Coagulates the emulsion

Colloidal sulphur.                   

Colloidal silver.

Colloidal gold.                         

Colloidal antimony.

decrease in entropy of the system

decrease in enthalpy of the system

T$∆$S for the process is negative

all of the above

A suspension

Sol

True solution

None of the above

Soap

Oil

NaCl

Water

MnO₂ decomposes to give oxygen.

MnO₂ provides  heat by reacting.

Better contact is provided by MnO₂

MnO₂ acts as a catalyst.

its shape

amount of its charge

the sign of charge

both amount and sign of the charge

refraction of the blue light by the imputities in sea water

reflection of blue light by sea water

scattering of blue light by sol particles

absorption of other colours except the blue colour by water molecules

Positively charged particles.

Negatively charged particles.

Neutral particles.

Negatively as well as positively charged particles.

Reversible colloids

Irreversible colloids

Protective colloids

Gum, and proteins

Enzymes are in colloidal state

Enzymes are catalysts

Enzymes can catalyse any reaction

Urease is an enzyme

promoter                       

poison

auto-catalyst                 

none of these

may be defined as the milligram of the dry material of which the hydropholic sol is prepared and which when added to 10 mL of red gold sol, will prevent it from coagulation on the addition of 1mL of 10 percent sodium chloride solution.

may be defined as the milligram of the dry material of which the hydrophilic sol is prepared and which when added to 1 mL of red gold sol will prevent it from coagulation on the addition of 10 mL of 10 percent sodium chloride solution.

may be defined as the miligram of the dry material of which the hydrophilic sol is prepared and which when added to 1 mL of red gold sol will prevent it from coagulation on the addition of 1 mL of 1 percent sodium chloride solution

none of the above 

Its heat of adsorption is high

It takes place at high temperature

It is reversible

It forms unimolecular layer

possible colloid                 

NaCl             

BaSO₄

AlCl₃           

Na₃PO₄

20               

40

80               

100

deccompose

dissociate

associate

become completely soluble

P=0

n=$\infty$

1/n = 1

1/n = $\infty$

K⁺

Ca⁺⁺

Al⁺⁺⁺

Sn⁴⁺

H⁺

OH^-

O^-2

S^-2

      Only A is correct

      Only B is correct

      Both are correct

      None of these

AlCl₃

BaCl₂

NaCl

KCl

 $\frac{\mathrm{x}}{\mathrm{m}}\mathrm{\alpha } \mathrm{p}°$

 $\frac{\mathrm{x}}{\mathrm{m}}\mathrm{\alpha } \mathrm{p}$

 $\frac{\mathrm{x}}{\mathrm{m}}\mathrm{\alpha } {\mathrm{p}}^{1/\mathrm{n}}$

All are correct for different ranges of pressure

different diameters of colloidal gold particles

variable valency of gold

different concentration of gold particles

impurities produced by different methods

The value of equilibrium constant is changed in the presence of a catalyst in the reaction equilibrium

Enzymes catalyse mainly biochemical reaction

Coenzymes increase the catalytic activity of enzyme

I>II>III                 

II>I>III

III>II>I                 

III>I>II

Internal energy

Enthalpy

Activation energy

Entropy

$∆$G, $∆$H and $∆$S all are negative

$∆$G and $∆$H are negative but $∆$S is positive

$∆$G and $∆$S are negative but $∆$H is positive

$∆$G is negative but $∆$H and $∆$S are positive

Gas in liquid

Solid in gas

Gas in gas

Liquid in gas