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Write the number of unpaired electrons in Cr3+. (Atomic number of Cr = 24)
Complete the reaction mentioning all the products formed : Cr2O72– + 3H2S + 8H+ →
Account for the following : (i) Mn2+ is more stable than Fe2+ towards oxidation to +3 state. (ii) Copper has exceptionally positive EM2+/M value. (iii) Eu2+ with electronic configuration [Xe] 4f76s2 is a strong reducing agent.
Complete and balance the following equations : (1) Cr₂O₇²⁻ + 14H⁺ + 6Fe²⁺ → (2) KMnO₄ →(heat)
Complete and balance the following chemical equations:
Complete and balance the following chemical equations :
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