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

State Two Important Uses of Following Metal : Uses of Gold

Advertisements
Advertisements

प्रश्न

State two important uses of following metal: 

Uses of gold  

एका वाक्यात 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
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 6: Metals and Non-metals - Additional questions 2

APPEARS IN

एस.पी. सिंह Concise Chemistry [English] Class 7 ICSE
पाठ 6 Metals and Non-metals
Additional questions 2 | Q 3.01

संबंधित प्रश्‍न

Aluminium is not used to make : 


Fill in the blank spaces by choosing the correct words from the given list.
List: amalgam, chlorine, gallium, sodium chloride, silver chloride 

A solution of a metal in mercury is called ________


Write ‘True’ or ‘False’ in front of following statement.  

Brass is an alloy of copper and zinc and has lustrous yellow colour. 


Name a metal which is not malleable : 


State the position of the following in the periodic table:

Alkali metals


State the position of the following in the periodic table:

Iron and zinc


Take an element from an alkali metal and one from an alkaline earth metal and write an equation  for their action with:

Hydrochloric acid,


Write name.

The device used for grinding an ore.


Write name.

The nonmetal having electrical conductivity.


Write scientific reason.

Anodes need to be replaced from time to time during the electrolysis of alumina.


What is it made from? Why?

Ornaments


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

Magnesium


Name the following:

A metal used in packaging.


Complete the following flowchart.


The metal which is liquid at room temperature is ______.


An element which is always lustrous, malleable and ductile is ______.


Higher Order Thinking Skills.

Aakash noticed that the metal latch on gate was difficult to open during hot sunny days. However, it was not difficult to open the same latch at night. Aakash observed that the latch and the gate are exposed to the sun during day time.

  1. Formulate a hypothesis based on the information provided.
  2. Briefly state how you would test the hypothesis.

Name two soft metals which can be cut with a knife.


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


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×