Class 11ChemistryClassification of Elements and Periodicity in PropertiesValency and oxidation state
EasyWhich of the following elements exhibits variable oxidation states?
- ASodium
- BFluorine
- CChlorine
- DPotassium
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The general formula of the compound formed when a metal $(M)$ of group $1$ reacts with a non-metal $(X)$ of group $16$ is:
The atomic number of an element which shows the oxidation state of $+3$ is
Medium
View SolutionIn the periodic table,the valency of elements in any period...
Easy
View SolutionUsing the Periodic Table,predict the formulas of compounds which might be formed by the following pairs of elements:
$(a)$ Silicon and bromine
$(b)$ Aluminium and sulphur
$(a)$ Silicon and bromine
$(b)$ Aluminium and sulphur
Medium
View SolutionAssertion : $HClO_4$ is a stronger acid than $HClO_3$.
Reason : Oxidation state of $Cl$ in $HClO_4$ is $+VII$ and in $HClO_3$ is $+V$.
Reason : Oxidation state of $Cl$ in $HClO_4$ is $+VII$ and in $HClO_3$ is $+V$.
DifficultAIIMS 2017
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