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सी.आई.एस.सी.ई.आयसीएसई ICSE Class 7

State Two Important Uses of Following Metal Uses of Tin - Chemistry

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प्रश्न

State two important uses of following metal 

Uses of tin  

एका वाक्यात उत्तर

उत्तर

Uses of tin :

  • It is used for tinning food cans and the cooking vessels made from copper or iron.
  • It is used for making alloys, such as brass and bronze.
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पाठ 6: Metals and Non-metals - Additional questions 2

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सेलिना Concise Chemistry [English] Class 7 ICSE
पाठ 6 Metals and Non-metals
Additional questions 2 | Q 3.05

संबंधित प्रश्‍न

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

Sodium is a very reactive metal. ( )


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

Copper displaces zinc from zinc sulphate solution. ( )


Give reasons for the following.

Copper cannot displace zinc from its salt solution.


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

Write word equations of the reactions involved.


State one use of Silver.


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


Mention two uses of the following metals and non-metals 

Oxygen


Mention two uses of the following metals and non-metals 

Iodine    


Write ‘true’ or ‘false’ for the following statement : 

Silver is used to make electric cables.


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

Hydrochloric 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:

Lead


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

Silver


An element which is always lustrous, malleable and ductile is ______.


Higher Order Thinking Skills.

Aakash noticed that the metal latch on gate was difficult to open during hot sunny days. However, it was not difficult to open the same latch at night. Aakash observed that the latch and the gate are exposed to the sun during day time.

  1. Formulate a hypothesis based on the information provided.
  2. Briefly state how you would test the hypothesis.

Why are bells made of metals?


The metal can be cut with a knife ______.


Why do metals appear shiny?


Which metals are liquid at room temperature?


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