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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: Aluminium

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प्रश्न

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

Aluminium

एका वाक्यात उत्तर
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उत्तर

Aluminium:

  1. Making utensils as a metal, it is easily moulded in utensils.
  2. In paints – Aluminium powder is mixed with linseed oil as it is anti-corrosive in nature.
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पाठ 6: Metals and Non-metals - Exercise

संबंधित प्रश्‍न

Give a reason for Alkali metals are good reducing agents.


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


 For the reduction of metal oxide, suggest a reducing agent other than carbon.


Fill in the blank 

_______ is a soft metal. 


State the position of the following in the periodic table:

Aluminium


Write scientific reason.

Generally the ionic compounds have high melting points.


Which is the non-ionic compound in the compounds given below.
AgNO3 + Nacl → AgCl + NaNO3


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:

Silver


Name the following:

The most reactive halogen.


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.

What is ductility?


Which one of the following four metals would be displaced from the solution of its salts by other three metals?


Which of the following is not a metal?


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


In the following figure, you find that the bulb glows when an iron nail is placed between two ends of wire. Complete the following sentences on the basis of this fact.

  1. ______  is a metal.
  2. Metals are good ______ of electricity. 

All gases are ______.


Metals have high melting points.


Why are metalloids called semimetals?


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