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प्रश्न
Differentiate between metals and non-metals on the basis of their chemical properties.
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उत्तर
| Sr. No. | Metals | Non-metals |
| 1. | Metals form basic oxides. | Non-metals form acidic oxides or neutral oxides. |
| 2. | Metals displace hydrogen from water (or steam). | Non-metals do not react with water (or steam) and hence do not displace hydrogen from water (or steam). |
| 3. | Metals displace hydrogen from dilute acids. | Non-metals do not react with dilute acids and hence do not displace hydrogen from dilute acids. |
| 4. | Metals form ionic chlorides with chlorine. These ionic chlorides are electrolytes but non-volatile. | Non-metals form covalent chlorides with chlorine (which are non-electrolytes but volatile). |
| 5. | Metals usually do not combine with hydrogen. Only a few reactive metals combine with hydrogen to form ionic metal hydrides. | Non-metals react with hydrogen to form stable, covalent hydrides. |
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संबंधित प्रश्न
Name the following:
Metals which forms an amphoteric oxide.
Write the electron-dot structures for sodium, oxygen and magnesium.
Show the formation of Na2O by the transfer of electrons.
Name two metals which form amphoteric oxides.
Write an equation for the reaction of:
Sodium with oxygen
What will happen if a strip of copper is kept immersed in a solution of silver nitrate (AgNO3)?
Give reasons for the following:
Blue colour of copper sulphate solution is destroyed when iron filings are added to it.
Arrange the following metals in order of their chemical reactivity, placing the most reactive metal first:
Magnesium, Copper, Iron, Sodium, Zinc, Lead, Calcium
Give one example, with equation, of the displacement of hydrogen by a metal from an acid.
What is the action of water on magnesium? Write equations of the chemical reactions involved.
Write one reaction in which aluminium oxide behaves as a basic oxide and another in which it behaves as an acidic oxide.
What special name is given to substances like aluminium oxide?
Write the equation for the reaction of:
Iron with dilute hydrochloric acid.
Name the products formed in the given case. Also indicate the physical states of all the substances involved.
Name one metal which displaces silver from a silver nitrate solution.
Which one of the following four metals would be displaced from the solution of its salt by the other three metals?
(a) Zn
(b) Ag
(c) Cu
(d) Mg
Metal A burns in air, on heating, to form an oxide A2O3 whereas another metal B burns in air only on strong heating to form an oxide BO. The two oxides A2O3 and BO can react with hydrochloric acid as well as sodium hydroxide solution to form the corresponding salts and water.
(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.
In nature, metal A is found in a free state while metal B is found in the form of its compounds. Which of these two will be nearer to the top of the activity series of metals?
What is the characteristic of the electronic configuration of noble gases?
Generally, metals are solid in nature. Which one of the following metals is found in liquid state at room temperature?
