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सी.आई.एस.सी.ई.आयसीएसई ICSE Class 7

Name a Metal Used in Making Electric Cables - Chemistry

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प्रश्न

Name a metal used in making electric cables 

एक शब्द/वाक्यांश उत्तर

उत्तर

Copper

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पाठ 6: Metals and Non-metals - Exercise

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सेलिना Concise Chemistry [English] Class 7 ICSE
पाठ 6 Metals and Non-metals
Exercise | Q 1.5

संबंधित प्रश्‍न

 State one use of Nitrogen.


State one use of Sulphur.


You are given a dry cell, a torch bulb with holder, wires and crocodile clips. How would you use them to distinguish between samples of metals and non-metals?


Name a non-metal which conducts electricity.


State any three differences between the physical properties of metals and non-metals.


Name a metal that is the best conductor of electricity 


Tick (√) the most appropriate answer.
Copper metal is used in :


State any five physical properties of a metal.
Physical properties of a metal : 


Give the balanced reactions for the following:

Magnesium reacts with boiling water


How many valence electrons are present in:

(ii) non-metals?


Which metals do not corrode easily?


Identify the odd term.


Why is hydrogen kept in the metal activity series?


Explain the following:

Metals like calcium and magnesium are never found in their free state in nature.


The sound of one metal colliding with another makes a noise, this property is called as _______.


Identify who I am!

Carbon allotropes- _______


A non-metal A is an important constituent of our food and forms two oxides B and C. Oxide B is toxic whereas C causes global warming

  1. Identify A, B and C
  2. To which Group of Periodic Table does A belong?

Which non-metal is essential for our life and all living beings inhale it during breathing?


Paheli bought a statue made up of copper. To her surprise, it acquired a dull green coating after a couple of months. Explain the reason.


Non – metals are ______.


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