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प्रश्न
Write ‘true’ or ‘false’ for the following statement.
Sand is an oxide of silicon.
पर्याय
True
False
उत्तर
True
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संबंधित प्रश्न
What are metalloids?
Give two uses of Silicon
Give two uses of Antimony
Fill in the blank
_________ is the hardest compound known to us
A metalloid used to make glass :
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 _______
The most ductile metal is _______.
Give the basic demarkation of the Modern Periodic Table into metals, metalloids and non-metals with special reference to halogens and noble gases.
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.
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.
Write three properties of metalloids.
