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प्रश्न
How are the elements with variable valency named? Explain with an example.
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उत्तर
If an element exhibits two different positive valencies, then
- for the lower valency, use the suffix -OUS at the end of the name of the metal
- for the higher valency, use the suffix -IC at the end of the name of the metal.
Example:
|
Element |
Lower valency |
Higher valency |
|
Ferrum (Iron) |
Ferrous (Fe2+) |
Ferric (Fe3+) |
APPEARS IN
संबंधित प्रश्न
Match the symbols of non-metallic elements with their correct combining power or capacity.
(a) O
(b) S
(c) Cl
Combining power or capacity A : 3; B : 2; C : 1. (negative valencies)
Select the correct answer from the choice given below.
The symbol of mercury is
Give the symbol of the following element:
Potassium
Give the symbol of the following element:
Oxygen
Give the symbol of the following element:
Antimony
Write the radical of the following valency:
Zinc
Give the formula of the following gas:
Hydrogen chloride
What is meant by the term ‘symbol’?
What does the symbol '→' present in a chemical equation, mean?
What does the symbol '⇌' present in a chemical equation, mean?
