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प्रश्न
Name the metals present in the following alloys
Duralumin
उत्तर
Duralumin— Aluminium and copper
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संबंधित प्रश्न
If an element has a low ionization energy then it is likely to be ______________ (metallic / non metallic).
Name two metals which are both malleable and ductile.
Name two physical properties of sodium in which it's behaviour is not as expected from it's classification as metal.
What are metals? Name five metals.
How do non-metals react with oxygen? Explain with an example. Give equation of the reaction involved. What is the nature of the product formed? How will you demonstrate it?
Tick (√) the most appropriate answer.
Copper metal is used in :
Name a gaseous non-metal,. having greenish yellow colour.
Name:
a metal with low melting and boiling points
Name:
a non- metal used in alloys
Name:
Two metals which are liquid at room temperature
Name:
two non metals which are monoatomic
Explain how the activity series accounts for each of the following:
reaction with acids
Give a short account of heating effect on metal carbonates based on the activity series ?
Write scientific reason.
Copper and brass vessels are cleaned with lemon.
Write scientific reason.
Sodium metal is kept in kerosene.
Why is hydrogen kept in the metal activity series?
Which metal occurs as an oxide also gives the name of their respective ore.
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 sublimes and is non-lustrous
Which of the following non-metals is a liquid?
