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प्रश्न
Fill in the blank
_________ is the hardest compound known to us
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उत्तर
Silicon carbide is the hardest compound known to us
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संबंधित प्रश्न
What are metalloids?
Give two uses of Silicon
Give two uses of Germanium
Write ‘true’ or ‘false’ for the following statement.
Antimony is a metal.
Write ‘true’ or ‘false’ for the following statement.
Sand is an oxide of silicon.
A metalloid used to make glass :
A metalloid used in the manufacture of microchips used in computer is :
Fill in the blank spaces by choosing the correct words from the given list.
List: amalgam, chlorine, gallium, sodium chloride, silver chloride
Saline glucose is a solution of glucose and _______
Give a reason why the non-metals – halogens and noble gases are placed in separate groups of the periodic table with special reference to their difference in properties.
State what are metalloids.
Name the elements recognised as metalloids.
State the uses of three different metalloids.
State whether the statement given below is true or false. If false write the correct statement.
Silicon is an example of a metalloid.
Write down the properties of metalloids.
______ is used as semiconductor.
Give two examples for metalloids.
Write three properties of metalloids.
Metalloids are ______ at room temperature.
