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प्रश्न
State whether the following statement is true or false :
Sponge is an example of solid sol.
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उत्तर
False. Sponge is an example of solid foam.
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संबंधित प्रश्न
The smallest unit of matter that exists freely in nature is called ...........
Define the term matter. What is it composed of?
Liquids have definite volume but do not have definite shape.
Liquids have definite shape and definite volume.
All kinds of matter
What are the conditions for 'something' to be called 'matter'?
Out of solids, liquids and gases, which one has :
- maximum movement of particles ?
- maximum interparticle attractions ?
- minimum spaces between particles ?
Which of the following substances are elements ?
Water, Salt, Mercury, Iron, Marble, Diamond, Wood, Nitrogen, Air, Graphite, Hydrogen, Oxygen, Sugar, Chlorine
Name a metal which can be easily cut with a knife.
The element which is not common between the compounds called baking soda and soda ash is
The elements which normally exist in the liquid state are :
Which of the following does not have a fixed melting point/boiling point ?
Out of a colloid, solution and a suspension :
which one has the largest particles ?
What is the name of the clear liquid formed when a solid dissolves in a liquid ?
Classify the following into solutions, suspensions and colloids :
Soda-water, Milk, Brine, Blood, Ink, Smoke in air, Chalk water mixture, Milk of Magnesia, Shaving cream, Muddy river water.
Define the emulsion. Give one example.
How is the impurity of iron present in several substances removed in industries ?
You are given a mixture of iodine in alcohol called tincture iodine. Which method will you use to recover both, iodine as well as alcohol, from this mixture ?
Asmita went to buy an earthen pot. There she saw many things kept for sale.
How did she identify what she needed?
Name the metals that are used in jewellery.
