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सी.आई.एस.सी.ई.आयसीएसई ICSE Class 7

With Reference to the Following Metals State Their Use in Daily Life Metal: Lead - Chemistry

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प्रश्न

With reference to the following metals state their use in daily life metal:

Lead

एका वाक्यात उत्तर

उत्तर

Lead:

  1. Flexible pipes as it is malleable and reactant to corrosion.
  2. Bullets as it has high specific gravity and also is moulded into castings.
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पाठ 6: Metals and Non-metals - Exercise

संबंधित प्रश्‍न

State one use of Aluminium.


Fill in the following blank with suitable word:

Brass is an alloy of copper and .........


What elements are present in steel? How are the properties of steel different from those of pure iron?


Give reasons  

Aluminium is used in making aircrafts.  


Fill in the blank spaces by choosing the correct words from the given list.
List: amalgam, chlorine, gallium, sodium chloride, silver chloride  

Salt of silver, such as ________ is used for making photographic films.


Name a metal which is not malleable : 


Give the general characteristics of:

Alkali metals,

(i) bonding
(ii) action of air
(iii) action of water
(iv) action of acid


Take an element from an alkali metal and one from an alkaline earth metal and write an equation for their action with:

Sulphuric acid


Why are alkali metals kept in kerosene oil?


Write name.

The oxide that forms salt and water by reacting with both acid and base.


Write scientific reason.

Sodium is always kept in kerosene.


The electronic configuration of metal ‘A’ is 2,8,1 and that of metal ‘B’ is 2,8,2. Which of the two metals is more reactive? Write their reaction with dilute hydrochloric acid.


With reference to the following metals state their use in daily life metal:

copper


With reference to the following metals state their use in daily life metal:

Aluminium


What is ductility?


The most abundant metal in the earth’s crust is ____________.


Name two major non-metals which are present in fertilisers and enhance the growth of plants.


All gases are ______.


X [2, 8, 7] and Y [2, 8, 2] are two elements. Using this information, complete the following:

______ is the reducing agent.


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