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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
Correct the following statement:
CO and Co both represents cobalt.
Why is it necessary to separate the constituents of a mixture.
Give three differences between metals and non-metals.
Give one use of the following substance:
Coal
Indicate whether the following statement is true or false:
Elements are made up of compounds
Give a reason for the following statement :
The filter paper made into a cone & placed in a funnel for filtering out the solid particles in a solid-liquid mixture should be moistened before placing it.
Classify the following as elements and compounds.
Water, Common salt, Sugar, Carbon dioxide, Iodine and Lithium
What are elements? What are they made of?
Complete the table by writing the symbols of the following elements
| Element | Symbol |
| Aluminum | Al |
| Nickel | |
| Bromine | |
| Helium | |
| Magnesium |
Higher-Order Thinking questions:
Why is hydrogen considered an element?
