The hydrophilic-lipophilic balance (HLB) value of a surfactant is 16. This surfactant is most likely to be used in which type of emulsion?
Oil-in-water (o/w)
Water-in-oil (w/o)
Both o/w and w/o equally
Neither o/w nor w/o
Related Questions
An emulsifier is a substance which
Stabilises the emulsion
Homogenises the emulsion
Coagulates the emulsion
Accelerates the dispersion of liquid in liquid
An emulsion is prepared using a non-ionic surfactant with an HLB value of 10. Upon adding a strong electrolyte, the emulsion inverts. What is the most likely new emulsion type?
Water-in-oil (w/o)
Oil-in-water (o/w)
The emulsion type remains unchanged
The emulsion breaks completely
Anionic detergents are characterized by:
A negatively charged hydrophilic head
A positively charged hydrophobic head
A nonpolar hydrophilic tail
A positively charged hydrophilic head
For which colloidal substance the dispersed phase and dispersion medium are liquid and solid respectively?
Sol
Gel
Emulsion
Aerosol
From the following which is not an emulsifier?
Agar
Milk
Gum
Soap
Emulsifying agents generally used are :
Ions with negative charge
Surface active agents
Ions with a positive charge
Lyophobic substances
Which is an emulsion?
Boot polish
Lipstic
Shampoo
All of these
The process of converting oils or fats into soaps by the action of an alkali is called:
Hydrogenation
Saponification
Esterification
Hydrolysis
Cod liver oil is
An emulsion
Solution
Colloidal solution
Suspension
In whipped cream, the dispersed phase and dispersion medium respectively are
Liquid and liquid
Gas and liquid
Liquid and gas
Liquid and solid
