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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

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

Sodium is a very reactive metal. ( )


A metal having low melting point is ______ but a non-metal having very high melting point is ______.


State one use of the following metal:

Aluminium


State one use of the following metal:

Gold


How are the properties of an alloy different from those of the constituent elements?


Mention two uses of the following metals and non-metals  

Gold 


Mention two uses of the following metals and non-metals 

Iodine    


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

Iodine acts as an antiseptic in the form of a tincture of iodine. 


State the position of the following in the periodic table:

Alkali metals


Give the general characteristics of:

Alkali metals,

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


Write scientific reason.

Pine oil is used in froth flotation.


What is it made from? Why?

Ornaments


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

Zinc


Aluminium: _______: gold : : electric insulator


A is a reddish-brown metal, which combines with O2 at < 1370 K gives B, a black coloured compound. At a temperature > 1370 K, A gives C which is red in colour. Find A, B, and C with reaction.


The electronic configurations of three elements X, Y and Z are X – 2, 8; Y – 2, 8, 7 and Z – 2, 8, 2. Which of the following is correct?


The liquid metal at room temperature ______.


Which metals are not solid at room temperature?


Why are metalloids called semimetals?


Compare the conductivity of metals and non–metals.


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