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प्रश्न
Differentiate between metal and non-metal on the basis of their chemical properties.
उत्तर १
| Metal | Non-metal |
| Metals are electropositive. | Non-metals are electronegative. |
| Oxides of metal are basic in nature. | Oxides of non-metals are acidic in nature. |
| Metals displace hydrogen from dilute acids. | They can’t replace hydrogen from dilute acids. |
| Metals form chlorides which are electrovalent or ionic compounds. | Non-metals form chlorides which are covalent compounds. |
| They react with water to form oxides and hydroxides. Some metals react with cold water, some with hot water, and some with steam. | They do not react with water. |
उत्तर २
| Chemical properties | Metals | Non-metals | |
| (i) | Reaction with oxygen | Metals react with oxygen to form basic oxides. | Non-metals react with oxygen to form acidic or neutral oxides. |
| (ii) | Reaction with water | Metals react with water to form metal hydroxide and hydrogen gas | Non-metals do not react with water. |
(iii) |
Reaction with dilute acid | Metals react with dilute acids to form metal salts and they displace hydrogen from acids. | Non-metals do not react with dilute acids. |
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संबंधित प्रश्न
Write the chemical reaction when iron reacts with dilute H2SO4.
The solution of Aluminium sulphate in water is .....................
(a) Green
(b) Colourless
(c) Pink
(d) Blue
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(a) Combination
(b) Displacement
(c) Double displacement
(d) Decomposition
Write equation for the reaction of sodium with oxygen.
Give reason for the following:
Blue colour of copper sulphate solution is destroyed when iron filings are added to it.
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Name two metals (other than zinc and iron) which can displace hydrogen from dilute hydrochloric acid?
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Write the equation for the reaction of Aluminium with dilute hydrochloric acid.
Name the products formed. Also indicate the physical states of all the substances involved.
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Name one metal which displaces silver from silver nitrate solution and one which does not.
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(a) What is the nature of oxide A2O3?
(b) What is the nature of oxide BO?
(c) Name one metal like A.
(b) Name one metal like B.
Arrange the following metals in the increasing order of their reactivities:
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Which one among the following is an acidic oxide?
Which of the following property is not responsible for copper to be used as electrical conduction wires?
Why is acidified water considered to be a good conductor of electricity?
