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प्रश्न
What do the following symbol stand for?
H2
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उत्तर
H2 stands for one molecule of hydrogen.
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संबंधित प्रश्न
Explain the terms ‘chemical formula’.
In the chemical word equation –
Zinc + Sulphuric acid → Zinc sulphate + Hydrogen.
State the reactants and products of the above reaction. What does the arrow indicate?
State which element exists in the highest percentage in atmosphere.
Elements are mainly classified into metals and non-metals. State six properties of metals which differ from non-metals.
Give the symbol of the following element:
Potassium
State the type of element for the following:
Boron
Write the radical of the following valency:
Sulphur [Sulphide]
Give the formula of the following gas:
Hydrogen chloride
Give the formula of the following gas:
Ammonia
State why the molecular formula of zinc carbonate is ZnCO3 .
