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प्रश्न
What is meant by the concentration of a solution ?
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उत्तर
The concentration of a solution is the amount of solute present in given quantity of the solution.
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संबंधित प्रश्न
Fill in the blank
Liquids have a definite ______
What is meant by saying that metals are sonorous ?
What is the general name of the materials which contain at least two pure substances and show the properties
of their constituents ?
Name one element, one compound and one mixture.
What is meant by (i) elements (ii) compounds, and (iii) mixtures ?Write down the names of two elements, two compounds and two mixtures.
There are three substances X, Y and Z. The substance X does not have a fixed melting point or boiling point and it still shows the individual properties of its constituents. The substance Y is a pure substance which occurs in nature as such. The substance Y has a fixed melting point and boiling point but it cannot be broken down into simpler substances by any chemical means. The substance Z is also a pure substance whose properties are entirely different from those of its constituents. The substance Z can, however, be divided by electrolysis into two substances which belong to the same class of substances as Y.
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- What type of substance could Z be ? Name one substance like Z.
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- Name the three groups into which all the substances like Y are divided on the basis of their properties.
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which one has the largest particles ?
Fill in the following blank :
Milk is a .................... solution but vinegar is a .................... solution.
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What is the difference between colloids and suspensions ?
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How will you separate a mixture of iron filings and powdered carbon ?
There are three liquids A, B and C, all having different densities and different boiling points. Liquids A and C are organic in nature whereas liquid B is considered to be inorganic. When liquids A and B are put together in a container, they form a single layer. On the other hand, when, liquids B and C are mixed, they form two separate layers :
(a) Which process will you use to separate a mixture of A and B ?
(b) Which method will you use to separate a mixture of B and C ?
(c) Name the liquids which would behave like (i) A (ii) B and (iii) C.
Explain the meaning of the term matter with special reference to the term ‘substance’.
Which among the following is not a matter?
Solid is an arrangement of particles ______.
Higher the temperature, the higher the kinetic energy of particles.
Gas-solid is ______.
Define the term matter.
