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प्रश्न
Name the following:
An acid whose formula is ‘H2CO3’.
उत्तर
Carbonic acid
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संबंधित प्रश्न
Write the names of following elements Na, C, Kr, U, Ra, Fe, Co.
What do the following symbol stand for?
2H
Give the symbol and the number of atoms of the following elements present in carbon dioxide.
State the type of element for the following:
Radon
Define the term ‘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).
Bromide
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).
Aluminate
Write the symbols for the following elements and classify them as solid, liquid and gas. Aluminum, Carbon, Chlorine, Mercury, Hydrogen and Helium
Describe the different ways in which we can write the symbols of elements. Give appropriate examples.
Write the symbols for the following elements.
- Oxygen
- Gold
- Calcium
- Cadmium
- Iron
