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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
An element which can exhibit valencies of 2, 4 and 6 can be :
Write the full form of IUPAC. Name the elements represented by the following symbols:
Au, Pb, Sn, Hg
Give two examples of the following:
Solid + Liquid mixture
Give the symbol and the number of atoms of the following elements present in carbon dioxide.
State the type of element for the following:
Lead
Write the radical of the following valency:
Oxygen
Write the radical of the following valency:
Potassium
Give the formula of the following gas:
Ammonia
How many elements are known at present?
What is the expansion of IUPAC.
