मराठी
सी.आई.एस.सी.ई.आयसीएसई ICSE Class 7

With Reference to the Following Metals State Their Use in Daily Life Metal: Copper

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प्रश्न

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

copper

एका वाक्यात उत्तर
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उत्तर

Copper:

  1. Making calori meters as it is good conductor of heat.
  2. Making thin wires being conductor of electricity.
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पाठ 6: Metals and Non-metals - Exercise

संबंधित प्रश्‍न

What happens when Dilute sulphuric acid is poured on a copper plate?

Write word equations of the reactions involved.


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

Write word equations of the reactions involved.


State one use of the following metal:

Copper


State one use of the following metal:

Mercury


State two important uses of following metal: 

Uses of silver  


State two important uses of following metal 

Uses of tin  


What is it made from? Why?

Pots and pans


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.


On heating which of the following substances i.e. copper carbonate, zinc carbonate, washing soda, copper sulphate, zinc nitrate, copper nitrate, lead nitrate, ammonium chloride and ammonium dichromate – relate to the reaction given below.

An amorphous substance which turns from pale green to black on strong heating evolving a colourless, acidic gas as the only gaseous product.


Write scientific reason.

Meena’s mother uses lemon or tamarind for cleaning copper vessels turned greenish.


Electronic configuration of metal A is 2,8,1. Electronic configuration of metal B is 2,8,8,2. Which of the above metals is more reactive? Explain with reason.


Complete the following flow chart.


Why are bells made of metals?


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


The most abundant element in the universe is ____________.


______ is the first scientist who used the term element.


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


Metals and non–metals are used for making ______, ______ and ______.


All gases are ______.


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