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प्रश्न
Give the formula of the following gas:
Nitrogen dioxide
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उत्तर
Nitrogen dioxide – NO2
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संबंधित प्रश्न
The anion of an element has ______.
An atom of an element is denoted by a “symbol” Explain the meaning of the term ‘symbol’. State a reason for representing the following element by its symbol.
Copper by ‘Cu’
Write the formula of the compound formed – given symbols and combining power or capacity (valency) of the following element in the compound.
K1+ Cl1-
Give the symbol of the following element:
Oxygen
State the type of element for the following:
Calcium
Write the radical of the following valency:
Chlorine [Chloride]
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.
Tin
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).
Permanganate
What does the symbol '→' present in a chemical equation, mean?
