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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

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प्रश्न

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

Lead

एका वाक्यात उत्तर
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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

Give a reason for the following:

Alkali metals are good reducing agents.


Which of the following alloys contains mercury as one of the constituents?


Give reasons 

Graphite is used in the leads of pencils  


Fill in the blank 

_______ is a soft metal. 


Statements given below are incorrect. Write the correct statements : 

Bronze is a mixture of 10% copper, 80% zinc and 10% tin.  


Write ‘True’ or ‘False’ in front of following statement.  

Brass is an alloy of copper and zinc and has lustrous yellow colour. 


State two important uses of following metal. 

Uses of copper  


Write scientific reason.

Anodes need to be replaced from time to time during the electrolysis of alumina.


 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:

iron


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

Zinc


Which one of the following is an example for a metal?


The metal which is liquid at room temperature is ______.


Can you store pickle in an aluminium utensil? Give reason.


Give reasons for the following.

  1. Aluminum foils are used to wrap food items.
  2. Immersion rods for heating liquids are made up of metallic substances.
  3. Sodium and potassium are stored in kerosene.
  4. Mercury is used in thermometers.

The most abundant element in the universe is ____________.


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


Why do metals appear shiny?


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