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सी.आई.एस.सी.ई.आयसीएसई ICSE Class 7

State Two Important Uses of Following Metal: Uses of Silver

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प्रश्न

State two important uses of following metal: 

Uses of silver  

एका वाक्यात उत्तर
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उत्तर

Uses of silver :

  • It is used for making coins and ornaments.
  • It is used for making high quality glass mirrors.
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पाठ 6: Metals and Non-metals - Additional questions 2

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एस.पी. सिंह Concise Chemistry [English] Class 7 ICSE
पाठ 6 Metals and Non-metals
Additional questions 2 | Q 3.02

संबंधित प्रश्‍न

Mark ‘T’ if the statement is true and ‘F’ if it is false.

Generally, non-metals react with acids. ( )


What happens when Iron nails are placed in copper sulphate solution?

Write word equations of the reactions involved.


The electrical conductivity and melting point of an alloy is ______ than that of pure metals.


What is a thermite reaction? Explain with the help of an equation.


Explain how, a reduction reaction of aluminium can be used for welding cracked machine parts of iron. Write a chemical equation for the reaction involved.


State two important uses of following metal:

Uses of aluminium


State the position of the following in the periodic table:

Iron and zinc


Write scientific reason.

Generally the ionic compounds have high melting points.


Write scientific reason.

Pine oil is used in froth flotation.


 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

 


What is it made from? Why?

A pair of tongs.


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

copper


Give a reason why a green deposit is seen on the surface of an article of copper


Name the following:

The chemical compound responsible for the green deposit on the surface of articles of copper.


Halogen reacts with acid.


Electronic configuration of metal A is 2,8,1. Electronic configuration of metal B is 2,8,8,2. Which of the above metals is more reactive? Explain with reason.


A doctor prescribed a tablet to a patient suffering from iron deficiency. The tablet does not look like iron. Explain.


Silver and copper are very good conductors of electricity.


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