Advertisements
Advertisements
प्रश्न
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).
Dichromate
Advertisements
उत्तर
| Name | Symbol | Ion | Valency |
| Dichromate | \[\ce{Cr2O7}\] | \[\ce{[Cr2O7]^{2-}}\] | −2 |
APPEARS IN
संबंधित प्रश्न
The symbol of a metal element which is used in making thermometers is :
Out of ozone, phosphorus, sulphur and krypton, the elements having the lowest and highest atomicities are respectively :
What is a symbol? What information does it convey?
Write the full form of IUPAC. Name the elements represented by the following symbols:
Au, Pb, Sn, Hg
In the chemical word equation – Zinc + Sulphuric acid → Zinc sulphate + Hydrogen
The molecular equation is :
Zn + H2SO4 → ZnSO4 + H2[g].
State what [g] represents.
State the type of element for the following:
Xenon
Give the symbol of the following element:
Sulphate
Give the formula of the following gas:
Sulphur dioxide
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).
Sulphide
State why the molecular formula of zinc carbonate is ZnCO3 .
