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प्रश्न
What is the oxidation state of chromium in chromate ion and dichromate ion?
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उत्तर
In both chromate and dichromate ion the oxidation state of Cr is +6.
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संबंधित प्रश्न
Account for the following:
Mn shows the highest oxidation state of +7 with oxygen but with fluorine, it shows oxidation state of +4.
The elements of 3d transition series are given as: Sc Ti V Cr Mn Fe Co
Answer the following: Which element has the highest m.p?
Which of the d-block elements may not be regarded as the transition elements?
Following are the transition metal ions of 3d series:
Ti4+, V2+, Mn3+, Cr3+
(Atomic numbers: Ti = 22, V = 23, Mn = 25, Cr = 24)
Answer the following:
1) Which ion is most stable in an aqueous solution and why?
2) Which ion is a strong oxidising agent and why?
3) Which ion is colourless and why?
Why do transition metals exhibit higher enthalpy of atomization?
Mention the type of compounds formed when small atoms like H, C and N get trapped inside the crystal lattice of transition metals. Also give physical and chemical characteristics of these compounds.
Which of the following species has maximum magnetic momentum?
Write the number of unpaired electrons in Cr3+.
(Atomic number of Cr = 24)
Account for the following:
Eu2+ with electronic configuration [Xe]4f76s2 is a strong reducing agent.
The trend of which property is represented by the following graph?
