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प्रश्न
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)
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उत्तर
(a) K — Valency-1 (C)
(b) Zn — Valency-2 (B)
(c) Al — Valency-3 (A)
(d) Na — Valency-1 (C)
(e) Ca — Valency-2 (B)
संबंधित प्रश्न
Name the element used as a standard for atomic mass scale.
The Latin language name of an element is natrium. The English name of this element is :
What do the following symbol stand for?
H2
Select the correct answer from the choice given below.
The symbol of mercury is
Give the symbol of the following element:
Zinc
State the type of element for the following:
Zinc
Give the symbol of the following element:
Carbonate
Give the formula of the following gas:
Nitric oxide
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
What does the symbol '(l)' present in a chemical equation, mean?
