Advertisements
Advertisements
Question
Gold and silver are used to make jewellery. Give reason
Solution
APPEARS IN
RELATED QUESTIONS
Why are metals used for making cooking vessels?
For the electro-refining of copper: Write the reaction that takes place at the anode
State any five physical properties of metals.
State any five physical properties of non-metals.
Name two metals whose melting points are so low that they melt when held in the hand.
Name a non-metal which is extremely hard.
State three reasons (of which at least one must be chemical) for believing that sulphur is a non-metal.
Name a metal that can be cut with knife
Name the metals present in the following alloys
Bronze
Fill in the blank
Tungsten metal is a poor conductor of _______
Tick (√) the most appropriate answer.
Sodium amalgam is prepared by dissolving sodium in :
State two important uses of following non-metal
Uses of oxygen
Name:
a non- metal used in alloys
How many valence electrons are present in:
(ii) non-metals?
Distinguish between a mineral and an ore.
Give a reason why – properties of metals are related to their activity or reactivity series of metals. Explain the same with reference to potassium and iron in the series.
Select the appropriate option for the following statement:
The element placed in the extreme left of the Modern Periodic Table.
_______ is good conductor of heat but bad conductor of electricity.
Reason out
Sulphur is used in the vulcanization of rubber.