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प्रश्न
Draw structure of dichromate ion
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उत्तर
Dichromate salts contain the dichromate anion, Cr2O72−
They are oxoanions of chromium in the oxidation state +6.
They are moderately strong oxidizing agents.
In an aqueous solution, dichromate ions can be interconvertible.
structure of dichromate ion Cr2O72−:
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संबंधित प्रश्न
What is the molecular formula of chromyl chloride?
(A) CrO2Cl2
(B) CrOCl2
(C) CrCl3
(D) Cr2OCl2
Draw the structure of the chromate ion.
Write observed electronic configuration of elements from first transition series having half
filled d-orbitals.
What is the action of acidified potassium dichromate on - KI
In acid medium, potassium permanganate oxidizes oxalic acid to ____________.
Which of the following statements is not true?
Permanganate ion changes to ____________ in acidic medium.
How many moles of I2 are liberated when 1 mole of potassium dichromate react with potassium iodide?
The number of moles of acidified KMnO4 required to oxidize 1 mole of ferrous oxalate (FeC2O4) is ____________.
Describe the preparation of potassium dichromate.
Complete the following.
\[\ce{C6H5CH3 ->[acidified][KMnO4]?}\]
Complete the following.
\[\ce{MnO^-_4 + Fe^2+ ->?}\]
Complete the following.
\[\ce{KMnO4 ->[\Delta][Red hot]?}\]
Complete the following.
\[\ce{Cr2O^2-_7 + I^- + H^+ ->?}\]
Complete the following.
\[\ce{Na2Cr2O7 + KCl ->?}\]
Explain why Cr2+ is strongly reducing while Mn3+ is strongly oxidizing.
Why do the d-block elements form coloured compounds?
