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).
Sulphite
Advertisements
उत्तर
| Name | Symbol | Ion | Valency |
| Sulphite | \[\ce{SO3}\] | \[\ce{[SO3]^{2-}}\] | −2 |
APPEARS IN
संबंधित प्रश्न
Write true or false
Milk is an emulsion.
Match the metallic elements – with their correct symbols Metallic elements
| Metallic elements | Symbol |
| (a) Potassium | (1) Ca |
| (b) Sodium | (2) Zn |
| (c) Calcium | (3) Pb |
| (d) Magnesium | (4) Hg |
| (e) Zinc | (5) Cu |
| (f) Aluminum | (6) Au |
| (g) Iron | (7) K |
| (h) Lead | (8) Fe |
| (i) Copper | (9) Al |
| (j) Mercury | (10) Na |
| (k) Silver | (11) Mg |
| (l) Platinum | (12) Pt |
| (m) Gold | (13) Ag |
Elements are mainly classified into metals and non-metals. State six properties of metals which differ from non-metals.
State the type of element for the following:
potassium
State the type of element for the following:
Aluminium
Write the chemical formula of the following:
magnesium sulphate
Give the formula of the following gas:
Nitrogen
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
Define Alchemy.
The name copper was taken from ______.
