Advertisements
Advertisements
प्रश्न
Mention two uses of the following metals and non-metals
Gold
Advertisements
उत्तर
It is used for making ornaments and coins.
It is used in the manufacture of electronic devices like computers, telephones, home appliances, etc.
APPEARS IN
संबंधित प्रश्न
Give reasons for the following.
Sodium and potassium are stored in kerosene.
What happens when Dilute sulphuric acid is poured on a copper plate?
Write word equations of the reactions involved.
State one use of Copper.
What is a thermite reaction? Explain with the help of an equation. State one use of this reaction.
Give reasons
Magnesium is used in fire works.
Statements given below are incorrect. Write the correct statements :
Aluminium is best conductor of electricity.
State two important uses of following metals:
Uses of iron
State the position of the following in the periodic table:
Alkaline earth metals
State the position of the following in the periodic table:
Aluminium
Take an element from an alkali metal and one from an alkaline earth metal and write an equation for their action with:
Water.
Name the following:
A metal used in flexible pipes.
Write the name.
Two highly reactive metals-
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.
Complete the following flowchart.
Complete the following flow chart.
The metal which is liquid at room temperature is ______.
Name one metal and one non-metal that exist in liquid state at room temperature. Also name two metals having melting point less than 310 K (37°C)
An element forms an oxide A2O3 which is acidic in nature. Identify A as a metal or non-metal.
Metals and non–metals are used for making ______, ______ and ______.
X [2, 8, 7] and Y [2, 8, 2] are two elements. Using this information, complete the following:
______ is the reducing agent.
