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सी.आई.एस.सी.ई.आयसीएसई ICSE Class 7

Name a Non-metal Which is Liquid Form at Room Temperature. - Chemistry

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प्रश्न

Name a non-metal which is liquid form at room temperature.

एका वाक्यात उत्तर

उत्तर

 Bromine is liquid at room temperature.

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

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सेलिना Concise Chemistry [English] Class 7 ICSE
पाठ 6 Metals and Non-metals
Additional questions 2 | Q 5.2

संबंधित प्रश्‍न

Give reasons for the following.

Aluminium foils are used to wrap food items.


Give the name and formulae of two acidic oxides.


Metals are said to be shiny. Why do metals generally appear to be dull? How can their brightness be restored?


 Name a metal that is most malleable  


Give reasons 

Copper is used in making electric cables. 


Name the metals present in the following alloys 

Duralumin 


Name the metals present in the following alloys  

Stainless steel   


Statements given below are incorrect. Write the correct statements : 

Soda water is prepared by dissolving washing soda in water.  


Name one metal which is a liquid at room temperature  


Name a metal which is lighter than water : 


State any five physical properties of a non-metal.


`Mg -—  → Mg^(2+)`


Select from the following ist:

`Fe_2O_3, , NO, PbO, Mn_2O_7`

Acidic oxide ………………


Explain how the activity series accounts for  the following:

occurrence of metals


Give the balanced reactions for the following:

Magnesium reacts with boiling water


Fill in the Blank and Rewrite the Statements:

Elements showing properties of both metals and nonmetals are known as _________.


With reference to the physical properties of metals and non-metals, state the following exception.

A non-metal which has low tensile strength


______ is the only non-metal which conducts electricity.


Melting point of most metal is ______ than non-metal.


Tabulate the differences between metals and non-metals.


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