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प्रश्न
Write the names of elements from the following symbol:
Si
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उत्तर
Si- Silicon
संबंधित प्रश्न
Define: Elements
Classify the following substances into elements and compounds
Mercury, sulphur, sugar, water, sand, gold, carbon, oxygen, alcohol, iron, marble, baking soda.
Give two examples of non-metals.
Define: Atom
Define: Formula
Answer the following question:
What do you understand by the statement: ‘metals are ductile and malleable’?
Indicate whether the following statement is true or false:
All elements are artificially prepared
Select the correct answer to the statement given below:
A non-metal which exists in the liquid state.
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.
Give an example of each mixture having the following characteristics. Suggest a suitable method to separate the components of this mixture
Two or more coloured constituents are soluble in some solvent.
