Advertisements
Advertisements
Question
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).
Plumbite
Solution
| Name | Symbol | Ion | Valency |
| Plumbite | \[\ce{PbO2}\] | \[\ce{[PbO2]^{2-}}\] | −2 |
APPEARS IN
RELATED QUESTIONS
The formula of the sulphate of an element X is X2(SO4)3. The formula of nitride of element X will be :
Give a reason why elements are tabulated in a table called the ‘Periodic table’.
Match the symbols of metallic elements – with their correct combining power or capacity.
(a) K
(b) Zn
(c) Al
(d) Na
(e) Ca
Combining power or capacity – A : 3 ; B : 2 ; C : 1. (positive valencies)
State the type of element for the following:
Sulphur
Give the symbol of the following element:
Nitrate
Give the symbol of the following element:
Sulphate
Write the radical of the following valency:
Sodium
Name the following:
An acid whose formula is ‘H2CO3’.
State the valency of the following metallic element and write symbol with the valency
Potassium
Give the qualitative and quantitative meaning of the term ‘symbol’.
