Advertisements
Advertisements
प्रश्न
Choose one term from the following which includes the other three :
aerosol, emulsion, colloid, sol
Advertisements
उत्तर
Colloid includes the other three. Aerosol, sol and emulsions are different types of colloids.
APPEARS IN
संबंधित प्रश्न
Fill in the blank
Liquids have a definite ______
What are the conditions for 'something' to be called 'matter'?
Name a non-metal which is a good conductor of electricity.
Name one solid, one liquid and one gaseous non-metal.
Choose the correct answer.
A 15% alcohol solution means :
Fill in the following blank :
Milk is a .................... solution but vinegar is a .................... solution.
Which of the following are chemical changes and which physical ? Give reason.
- a glass bottle breaking
- coal burning in air
- making a cake
- wool being knitted into a sweater
Name the process by which the various gases of the air are separated.
Which technique can be used to detect and identify traces of poison present in the stomach wash of a person ?
How will you separate a mixture of iron filings and powdered carbon ?
How is scrap iron separated from a heap of waste materials in factories?
Which method is better for recovering sugar from sugar solution : evaporation or crystallisation ? Give reason
for your answer.
What is chromatography ? State its two applications.
The given mixture contains three constituents A, B and C. The constituent A is a yellow coloured, solid element which dissolves in a liquid D. The constituent B is a blue coloured salt which is insoluble in liquid D but dissolves easily in another liquid E. The constitudent C is a liquid which is used in cooking food and forms a solid fat on hydrogenation.
(a) What do you think could (i) constituent A, and (ii) liquid D be ?
(b) What could (i) constituent B, and (ii) liquid E be ?
(c) What could liquid C be ?
(d) How will you separate the mixture containing A, B and C ?
Wipe the board with a duster and then tap the duster against the table. What do you see?
A standard sheet of paper is about ______ of atoms thick
What type of matter glass is?
Give some examples of the Tyndall effect observed in your surroundings?
Define the term matter.
Write a scientific reason.
Lemon sherbat has sweet, sour and salty taste and it can be poured in a glass.
