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प्रश्न
All kinds of matter
पर्याय
occupy space and have definite mass
have mass and definite shape
can change their states
have definite volume
उत्तर
occupy space and have definite mass
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संबंधित प्रश्न
What are the two conditions for the interconversion of states of matter ?
Name the scientist who studied the movement of pollen grains suspended in water through a microscope. What is this phenomenon known as?
Which of the following is a mixture ?
Salt, Air, Water, Alum, Sugar
Name one solid, one liquid and one gaseous non-metal.
Name the property which allows metals to be hammered into thin sheets.
What is meant by (i) elements (ii) compounds, and (iii) mixtures ?Write down the names of two elements, two compounds and two mixtures.
Draw a flow-chart for the schematic representation of different types of matter.
9.72 g of potassium chloride dissolves in 30 g of water at 70°C. Calculate the solubility of potassium chloride at that temperature.
Define solubility of a substance. How does it vary with temperature ?
When the solid A is added to water, it dissolves with the evolution of a lot of heat and making little explosions to form two products B and C. The properties of products B and C are entirely different from those of solid A as well as water. Moreover, products B and C cannot be reconverted into solid A and water. When another solid D is added to water, it dissolves with the absorption of a little heat to form a product E which cools down. The product E shows the properties of both, solid D as well as water. Moreover, product E can be converted into solid D and water.
(a) What type of change occurs when solid A is dissolved in water ? Why ?
(b) What type of change occurs when solid D is dissolved in water ? Why ?
(c) Name a metal which you think could behave like solid A. Also name the products B and C.
(d) Name the solid D if it is the one which is used in making ordinary dry cells.
(e) Name the process by which D can be recovered from E.
Name the process which can be used to recover salt from an aqueous salt solution.
Fill in the following blanks with suitable words :
The gases of air can be separated by fractional distillation of liquid air because they have different..............
Which one of the following scrap metal cannot be separated by magnetic separation ?
What difference in the properties of common salt and sand would enable you to separate a mixture of these two substances ?
Stars including Sun are covered in ______.
Higher the temperature, the higher the kinetic energy of particles.
Define the term matter.
Define the term matter.
Define the term matter.
Define the term matter.
