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प्रश्न
Write the formula of an oxo-anion of Manganese (Mn) in which it shows the oxidation state equal to its group number.
उत्तर
Formula of oxo-anion of manganese (Mn) in which it shows the oxidation state equal to its group number (7) is `Mn_4^(-)`
Mn + (-2 ×4) = -1
Mn - 8 = -1
Mn = +7
Oxidation of Mn in `MnO_4^(-)` is +7 which is equal to its group number 7.
संबंधित प्रश्न
Complete the following chemical equation
8MnO4- + 3S2O32- + H2O →
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Account for the following :
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Generally transition elements and their salts are coloured due to the presence of unpaired electrons in metal ions. Which of the following compounds are coloured?
(i) \[\ce{KMnO4}\]
(ii) \[\ce{Ce(SO4)2}\]
(iii) \[\ce{TiCl}\]
(iv) \[\ce{Cu2 Cl2}\]
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Indicate the steps in the preparation of \[\ce{K2Cr2O7}\] from chromite ore.
