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प्रश्न
The formula of the sulphate of an element M is M2(SO4)3
Write the formula of it
Chloride
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उत्तर
The valency of metal M is 3. So, the formulae are as follows:
Chloride - MCl3
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संबंधित प्रश्न
An element which can exhibit valencies of 2, 4 and 6 can be :
What do the following symbol stand for?
H
Give a reason why elements are tabulated in a table called the ‘Periodic table’.
Give the names and symbols of the first twenty elements of 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)
Give the symbol of the following element:
Arsenic
Give the symbol of the following element:
Carbonate
Write the chemical formula of the following:
zinc oxide
Give the formula of the following gas:
Hydrogen chloride
Give the formula of the following gas:
Carbon monoxide
