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प्रश्न
Name the following:
An acid whose formula is ‘H2CO3’.
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उत्तर
Carbonic acid
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संबंधित प्रश्न
How are the elements with variable valency named? Explain with an example.
Give the symbol and the number of atoms of the following elements present in carbon dioxide.
State which element exists in the highest percentage in atmosphere.
State the most reactive and the least reactive metal from the following – Zn, Ag, Na, Fe, Cu, Pb.
Give the symbol of the following element:
Phosphate
Give the formula of the following acid:
Nitric
Give the formula of the following gas:
Nitrous oxide
Certain metal exhibit variable valencies which include valencies: 1+, 2+, 3+, and 4+.
State the variable valency of the following metal.
Copper
write symbol with the variable valency
State whether the following ion or radical given below of a non-metallic element exhibits valency: 1–, 2– or 3–. (write the ion or radical with the correct valency).
Sulphate
The name copper was taken from ______.
