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सी.आई.एस.सी.ई.आईसीएसई ICSE Class 7

Name a Metal Which is Best Conductor of Electricity :

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प्रश्न

Name a metal which is best conductor of electricity :  

एक शब्द/वाक्यांश उत्तर
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उत्तर

Silver

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अध्याय 6: Metals and Non-metals - Additional questions 2

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एस पी सिंग Concise Chemistry [English] Class 7 ICSE
अध्याय 6 Metals and Non-metals
Additional questions 2 | Q 2.5

संबंधित प्रश्न

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

Sodium is a very reactive metal. ( )


Which of the following alloys contains mercury as one of the constituents?


Mention two uses of the following metals and non-metals 

Iodine    


Give reasons  

Aluminium is used in making aircrafts.  


A metal with melting point less than 50°C is


Statements given below are incorrect. Write the correct statements : 

Zinc is used for making power transmission wires.  


State two important uses of following metals: 

Uses of iron   


Give the general characteristics of:

Alkali metals,

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


When a copper coin is dipped in silver nitrate solution, a glitter appears on the coin after some time. Why does this happen? Write the chemical equation.


What was Mendeleev's basis for the classification of elements?


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


Name the following:

A halogen which is a solid at room temperature.


When a copper coin is dipped in the solution of silver nitrate, it shows a lustre on its surface. Explain this process with the help of a chemical equation.


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.


Which of the following property is generally not shown by metals?


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?


Silver and copper are very good conductors of electricity.


Which metals are liquid at room temperature?


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