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प्रश्न
Complete the following equations: Cr2O72- + 14H+ + 6I →
उत्तर
Cr2O72- + 14H+ + 6I → 2Cr3+ + 3I2 + 7H2O
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संबंधित प्रश्न
Complete the following equations:Cr2O72- + 2OH- →
Complete the following chemical equation
Cr2O72- + 3Sn2+ + 14H+ →
Describe the preparation of potassium dichromate from iron chromite ore. What is the effect of increasing pH on a solution of potassium dichromate?
Give an example and suggest a reason for the following feature of the transition metal chemistry:
The lowest oxide of transition metal is basic, the highest is amphoteric/acidic.
Complete the following equations:
`2MnO_4^(-)+16H^++5S^(2-)rarr`
Complete the following chemical equations :
Cu + H2SO4(conc.) →
Which of the following is amphoteric oxide?
\[\ce{Mn2O7, CrO3, Cr2O3, CrO, V2O5, V2O4}\]
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) \[\ce{Cu2 Cl2}\]
In the two tetrahedral structures of dichromate ion, ______.
Indicate the steps in the preparation of \[\ce{K2Cr2O7}\] from chromite ore.
