हिंदी
सी.आई.एस.सी.ई.आईसीएसई ICSE Class 7

State Two Important Uses of Following Metal : Uses of Gold - Chemistry

Advertisements
Advertisements

प्रश्न

State two important uses of following metal: 

Uses of gold  

एक पंक्ति में उत्तर
Advertisements

उत्तर

Uses of gold :

  • It is used for making jewellery and coins.
  • It is used in dentistry for filling cavities in teeth
shaalaa.com
  क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
अध्याय 6: Metals and Non-metals - Additional questions 2

APPEARS IN

सेलिना Concise Chemistry [English] Class 7 ICSE
अध्याय 6 Metals and Non-metals
Additional questions 2 | Q 3.01

संबंधित प्रश्न

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

Write word equations of the reactions involved.


Give a reason for Alkali metals are good reducing agents.


Explain how, a reduction reaction of aluminium can be used for welding cracked machine parts of iron. Write a chemical equation for the reaction involved.


Mention two uses of the following metals and non-metals  

Gold 


Give reasons  

Aluminium is used in making aircrafts.  


Give reasons 

Gold is mixed with copper and nickel.  


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 

______ is a liquid metal. 

 


Name a metal which is not malleable : 


State two important uses of following metal 

Uses of tin  


Write name.

The nonmetal having electrical conductivity.


Write scientific reason.

Generally the ionic compounds have high melting points.


What is it made from? Why?

Electric cables


What is it made from? Why?

Ornaments


Complete the following flow chart.


What is ductility?


Generally, metals are solid in nature. Which one of the following metals is found in a liquid state at room temperature?


Which of the following metals are obtained by electrolysis of their chlorides in molten state?

  1. Na
  2. Ca
  3. Fe
  4. Cu

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


Which metals are liquid at room temperature?


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×