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सी.आई.एस.सी.ई.आयसीएसई ICSE Class 7

Mention Two Uses of the Following Metals and Non-metals Aluminium

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प्रश्न

Mention two uses of the following metals and non-metals 

Aluminium  

एका वाक्यात उत्तर
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उत्तर

It is used to make electric wires.
It is used to make utensils, cans, window fram’es, etc.

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पाठ 6: Metals and Non-metals - Exercise

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एस.पी. सिंह Concise Chemistry [English] Class 7 ICSE
पाठ 6 Metals and Non-metals
Exercise | Q 3.2

संबंधित प्रश्‍न

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

Copper displaces zinc from zinc sulphate solution. ( )


Give a reason for the following:

Alkali metals are good reducing agents.


State one use of the following metal:

Gold


State one use of the following metal:

Mercury


Name two alloys of iron. What elements are present in these alloys?


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


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


How does the electrical conductivity of copper alloys, brass and bronze, differ from that of pure copper?


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

Silver is used to make electric cables.


Fill in the blank spaces by choosing the correct words from the given list.
List: amalgam, chlorine, gallium, sodium chloride, silver chloride  

Salt of silver, such as ________ is used for making photographic films.


Tick (√) the most appropriate answer. 

Graphite is used :


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:

Water.


Write name.

The device used for grinding an ore.


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:

Zinc


Give a reason why iron objects rust easily but the iron pillar at Qutab Minar has not rusted over the years.


Match the columns.

Group A Group B
1) Copper and Zinc a) Brass
2) Copper and Tin b) Bronze
  c) Stainless steel

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


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