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सी.आई.एस.सी.ई.आईसीएसई ICSE Class 7

State why telegraph poles are painted with aluminium paint.

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प्रश्न

State why telegraph poles are painted with aluminium paint.

एक पंक्ति में उत्तर
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उत्तर

Aluminium paint is applied on telegraph poles because it act as an anti corrosive paint.

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अध्याय 6: Metals and Non-metals - Exercise

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संबंधित प्रश्न

The atomic number of an element Y is 16.

  1. What must an atom of Y do to achieve the nearest inert gas electron arrangement?
  2. Which inert gas is nearest to Y?

Name one ore of manganese. Which compound of manganese is present in this ore? Also write its chemical formula.


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.


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


Mention two uses of the following metals and non-metals 

Aluminium  


Mention two uses of the following metals and non-metals  

Gold 


Statements given below are incorrect. Write the correct statements : 

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


State two important uses of following metal: 

Uses of gold  


State two important uses of following metal 

Uses of lead     


State the position of the following in the periodic table:

Aluminium


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

Oxygen


Write scientific reason.

Sodium is always kept in kerosene.


Compare the properties of metals and nonmetals. Give three examples for each.


Assertion: Mercury is solid in room temperature.

Reason: Mercury is a non-metal.


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


The most abundant element in the universe is ____________.


The metal can be cut with a knife ______.


The typical shine of metals is called ______.


X [2, 8, 7] and Y [2, 8, 2] are two elements. Using this information, complete the following:

______ is the metallic element.


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