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प्रश्न
Write ‘true’ or ‘false’ for the following statement.
Antimony is a metal.
विकल्प
True
False
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उत्तर
False
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संबंधित प्रश्न
Give two uses of Silicon
Give two uses of Tungsten
Give two uses of Germanium
Fill in the blank
_________ is the hardest compound known to us
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.
Compare the properties of metalloids with those of metals.
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.
The element which possesses the character of both metals and non metals are called ______.
______ is used as semiconductor.
Metalloids are ______ at room temperature.
