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प्रश्न
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
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उत्तर
Copper: exhibits valency 1 and 2
| \[\ce{Cu^1+}\] | \[\ce{Cu^2+}\] |
| Cuprous | Cupric |
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संबंधित प्रश्न
Explain the terms 'valency' and 'variable valency'.
The formula of the sulphate of an element M is M2(SO4)3
Write the formula of it
Phosphate
In the chemical word equation –
Zinc + Sulphuric acid → Zinc sulphate + Hydrogen.
State the reactants and products of the above reaction. What does the arrow indicate?
State the type of element for the following:
Aluminium
Write the radical of the following valency:
Nitrate
Write the radical of the following valency:
Iodine
Give the formula of the following gas:
Nitrogen
Select the correct answer to the statement given below:
An element present in the earth’s crust, atmosphere and the human body.
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).
Nitride
Write the symbols for the following elements.
- Oxygen
- Gold
- Calcium
- Cadmium
- Iron
