Advertisements
Advertisements
प्रश्न
With reference to the following metals state their use in daily life metal:
Lead
Advertisements
उत्तर
Lead:
- Flexible pipes as it is malleable and reactant to corrosion.
- Bullets as it has high specific gravity and also is moulded into castings.
APPEARS IN
संबंधित प्रश्न
Fill in the blanks:
Metals react with acids to produce _________ gas.
Give reasons for the following.
Copper cannot displace zinc from its salt solution.
Give reasons for the following.
Sodium and potassium are stored in kerosene.
What happens when Dilute sulphuric acid is poured on a copper plate?
Write word equations of the reactions involved.
A metal having low melting point is ______ but a non-metal having very high melting point is ______.
Give the composition of an alloy called solder. State its one property and one use.
The alloy in which one of the metals is mercury is called an ______.
Name a metal which is best conductor of electricity :
Why is hydrogen placed with alkali metals?
Take an element from an alkali metal and one from an alkaline earth metal and write an equation for their action with:
Sulphuric acid
Write name.
Molecular formula of the common ore of aluminium.
Match the alloys given in column I to the uses given in column II :
| Column I | Column II |
| (i) Duralumin | A. Electrical fuse |
| (ii) Solder | B. Surgical instruments |
| (iii) Brass | C. Aircraft body |
| (iv) Stainless Steel | D. Decorative articles |
With reference to the following metals state their use in daily life metal:
copper
Name the following:
A halogen which is a solid at room temperature.
Write the name.
Two highly reactive metals-
______ is the first scientist who used the term element.
A doctor prescribed a tablet to a patient suffering from iron deficiency. The tablet does not look like iron. Explain.
Why do metals appear shiny?
X [2, 8, 7] and Y [2, 8, 2] are two elements. Using this information, complete the following:
______ is the reducing agent.
