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प्रश्न
Fill in the following blanks with suitable words :
Brass is an alloy which is considered a ..............
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उत्तर
Brass is an alloy, which is considered as mixture.
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संबंधित प्रश्न
Give one difference between atoms and molecules.
Fill in the blank
Liquids have a definite ______
State two characteristics of matter demonstrated by Brownian motion.
Describe in your own words, what happens to the particles when salt dissolves in water.
Which type of elements, metals or non-metals, show the property of brittleness ?
What is the general name of the materials which contain at least two pure substances and show the properties
of their constituents ?
Classify the following into elements and compounds :
- H2O
- He
- Cl2
- CO
- Co
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.
Which of the following are compounds ?
- CO
- No
- NO
- Co
In the following set of substances, one item does not belong to the set. Select this item and explain why it does not belong to the set :
Hydrogen, Oxygen, Steam, Chlorine
Out of a colloid, solution and a suspension :
which one has the smallest particles ?
Which of the following will show Tyndall effect ? Why ?
- Salt solution
- Starch solution
- Milk
- Copper sulphate solution
What is a colloid ? Give two examples of colloids (or colloidal solutions)
Name the process which is used in milk dairies to separate cream from milk.
Describe a method for separating a mixture of iron filings and sulphur powder other than that by using a magnet.
Asmita went to buy an earthen pot. There she saw many things kept for sale.
How did she identify what she needed?
The property which allows the metals to be hammered into their sheets is ______.
Why wires cannot be drawn from materials such as stone or wood?
In Aerosol the dispersed phase is liquid and the dispersion medium is gas.
