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प्रश्न
Give the formula of the following acid:
Nitric
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उत्तर
Nitric – HNO3
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संबंधित प्रश्न
State what a chemical formula denotes.
Match the symbols of non-metallic elements with their correct combining power or capacity.
(a) O
(b) S
(c) Cl
Combining power or capacity A : 3; B : 2; C : 1. (negative valencies)
Give the symbol of the following element:
Sulphur [sulphide]
Write the radical of the following valency:
magnesium
Give the formula of the following gas:
Sulphur dioxide
Select the correct answer to the statement given below:
An element present in the earth’s crust, atmosphere and the human body.
Certain metal exhibit variable valencies which include valencies: 1+, 2+, 3+, and 4+.
State the variable valency of the following metal.
Iron
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).
Nitrate
The name copper was taken from ______.
In the same way in chemistry, each element is denoted by a ______.
