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प्रश्न
Identify the metal and justify your answer.
\[\ce{MO3F}\]
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उत्तर
The M in the given complex is in +7 O.S.
Manganese is the only element in the first transition series that shows +7 oxidation state, therefore this compound is \[\ce{MO3F}\].
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संबंधित प्रश्न
ln which pair highest oxidation states of transition metals are found:
Why +2 oxidation state of manganese is more stable?
Account for the following:
E° value for the Mn3+/Mn2+ couple is much more positive than that for Cr3+/Cr2+.
What are inner transition elements?
How is potassium dichromate prepared from chrome iron ore?
Explain why Zn2+ salts are white whereas Cu2+ salts are coloured.
In lake test for Al3+ ions, there is the formation of coloured ‘floating lake’. It is due to ______.
Although fluorine is more electronegative than oxygen, but the ability of oxygen to stabilise higher oxidation states exceeds that of fluorine. Why?
Although \[\ce{Cr^3+}\] and \[\ce{Co^2+}\] ions have same number of unpaired electrons but the magnetic moment of \[\ce{Cr^3+}\] is 3.87 B.M. and that of \[\ce{Co^2+}\] is 4.87 B.M. Why?
Reactivity of transition elements decreases almost regularly from Sc to Cu. Explain.
Transition metals can act as catalysts because these can change their oxidation state. How does \[\ce{Fe(III)}\] catalyse the reaction between iodide and persulphate ions?
Why are fluorides of transition metals more stable in their higher oxidation state as compared to the lower oxidation state?
Which of the following statements is not correct?
Account for the following:
Transition metals form alloys.
The oxidation state of Fe in [Fe(CO)5] is ______.
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.
Give a reason for the following.
Some transition metals and their compounds get attracted towards the magnetic field.
Why are interstitial compounds well known for transition metals?
Describe the oxidising action of potassium dichromate and write the ionic equation for its reaction with H2S.
Match List-I with List-II.
| List-I | List-II |
| A. Haber process | I. Fe catalyst |
| B. Wacker oxidation | II. PdCl2 |
| C. Wilkinson catalyst | III. [(PPh3)3RhCl] |
| D. Ziegler catalyst | IV. TiCl4 with Al(CH3)3 |
Choose the correct answer from the options given below:
