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प्रश्न
Give reason: Graphite is used to make a lead of the pencils.
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उत्तर
Graphite leaves mark on the paper and makes it black.
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संबंधित प्रश्न
Give two examples of Metalloids.
What is meant by 2H and H2
Give one use of the following substance:
Coal
Fill in the blank
The most abundant element in the earth’s crust is _______.
Indicate whether the following statement is true or false:
Elements are made up of compounds
Complete the statement given below by filling in the blank with the correct word.
The basic unit of an element is an __________.
Select the correct answer to the statement given below:
A non-metal which exists in the liquid state.
Name the process associated with the following
A fine beam of light entering through a small hole in a dark room illuminates the particles in its paths.
Give an account of elements known to us.
Reason out
Elements are called semimetals.
