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प्रश्न
Complete and balance the following chemical equations
`MnO_4^(-) + H_2O + I^(-) ->`
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उत्तर
`2MnO_4^(-) + H_2O + I^(-) -> 2MnO_2 + 2OH^(-) + IO_3^-`
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संबंधित प्रश्न
Why is the highest oxidation state of a metal exhibited in its oxide or fluoride only?
Which metal in the first series of transition metals exhibits +1 oxidation state most frequently and why?
Compare the general characteristics of the first series of the transition metals with those of the second and third series metals in the respective vertical columns. Give special emphasis on the following point:
Electronic configurations
Complete and balance the following chemical equations
`Fe^(2+) + MnO_4^(-) + H^+ ->`
Which is the most stable oxidation state of iron?
Why is \[\ce{HCl}\] not used to make the medium acidic in oxidation reactions of \[\ce{KMnO4}\] in acidic medium?
Match the solutions given in Column I and the colours given in Column II.
| Column I (Aqueous solution of salt) |
Column II (Colour) |
| (i) \[\ce{FeSO2.7H2O}\] | (a) Green |
| (ii) \[\ce{NiCl2.4H2O}\] | (b) Light pink |
| (iii) \[\ce{MnCl2.4H2O}\] | (c) Blue |
| (iv) \[\ce{CoC12,6H2O}\] | (d) Pale green |
| (v) \[\ce{Cu2 Cl2}\] | (e) Pink |
| (f) Colourless |
On adding NaOH, solution to the aqueous solution of K2CrO7 the colour of the solution changes from
The given graph shows the trends in melting points of transition metals:
Explain the reason why Cr has the highest melting point and manganese (Mn) has a lower melting point.
Why are interstitial compounds well known for transition metals?
