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प्रश्न
With reference to the following metals state their use in daily life metal:
iron
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उत्तर
Iron:
- Pig Iron is used in drain pipes as it is easily moulded into castings.
- Steel is used in Automobiles.
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संबंधित प्रश्न
Fill in the blanks:
Metals react with acids to produce _________ gas.
State one use of the following metal:
Gold
The atomic number of an element X is 12.
- What must an atom of X do to attain the nearest inert gas electron configuration?
- Which inert gas is nearest to X?
Give reasons
Graphite is used in the leads of pencils
A metal with melting point less than 50°C is
State two important uses of following metal:
Uses of aluminium
State the position of the following in the periodic table:
Alkali metals
State the position of the following in the periodic table:
Alkaline earth metals
Give the general characteristics of:
Alkaline earth metals with reference to
(i) bonding
(ii) action of air
(iii) action of water
(iv) action of acid
When a copper coin is dipped in silver nitrate solution, a glitter appears on the coin after some time. Why does this happen? Write the chemical equation.
What is it made from? Why?
A pair of tongs.
What is it made from? Why?
Ornaments
With reference to the following metals state their use in daily life metal:
Lead
On heating which of the following substances i.e. copper carbonate, zinc carbonate, washing soda, copper sulphate, zinc nitrate, copper nitrate, lead nitrate, ammonium chloride and ammonium dichromate – relate to the reaction given below.
An amorphous substance which turns from pale green to black on strong heating evolving a colourless, acidic gas as the only gaseous product.
The metal which is liquid at room temperature is ______.
Can you store pickle in an aluminium utensil? Give reason.
Which of the following is not a metal?
Sodium is a hard metal.
Match the following
| i. | Softest metal | a. | Copper |
| ii. | Hardest metal | b. | Sodium |
| iii. | Hardest non–metal | c. | Osmium |
| iv. | Ductility | d. | Diamond |
Match the following
| i. | Silica | a. | Caustic potash |
| ii. | Potassium hydroxide | b. | Sand |
| iii. | Sodium hydroxide | c. | Calamine |
| iv. | Zinc carbonate | d. | Caustic soda |
