Question : A colloidal system in which a liquid is dispersed in a liquid is called
Option 1: gel
Option 2: emulsion
Option 3: sol
Option 4: precipitate
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Correct Answer: emulsion
Solution : The correct option is emulsion.
An emulsion is a colloidal system in which one liquid is dispersed in another. Emulsions are colloidal suspensions comprising microscopic droplets of one liquid suspended inside another liquid (the dispersed phase). Milk (in which fat droplets are dispersed in water) and different salad dressings (in which oil is spread in vinegar or other aqueous solutions) are common examples of emulsions. Emulsions are classified as either oil-in-water (O/W) or water-in-oil (W/O) depending on whether the dispersed phase is oil or water.
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Question : An emulsion is a colloid of a
Option 1: Gas in a liquid
Option 2: liquid in a liquid
Option 3: liquid in a gas
Option 4: Gas in a solid
Question : A substance which readily forms colloidal solution in contact with water is called
Option 1: Extrinsic colloid
Option 2: Associated colloid
Option 3: Hydrophobic colloid
Option 4: Hydrophillic colloid
Question : Mercury is a:
Option 1: solid metal
Option 2: liquid metal
Option 3: Solid non-metal
Option 4: liquid non-metal
Question : Which of the following is not a weighted code?
Option 1: Excess 3-Code
Option 2: Binary Number System
Option 3: Decimal Number System
Option 4: BCD Number System
Question : Silica gel is a
Option 1: moisturiser
Option 2: flavouring agent
Option 3: drying agent
Option 4: delicious food
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