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प्रश्न
Which of the following transition metals shows +1 and +2 oxidation states?
विकल्प
Mn
Zn
Sc
Cu
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उत्तर
Cu
Explanation:
Cu typically exhibits the +1 oxidation state. This is due to the fact that Cu (+1) has an electrical configuration of [Ar]3d10. It is extremely stable due to the entirely filled d-orbital. Furthermore, Cu has a +2 oxidation state.
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संबंधित प्रश्न
Why +2 oxidation state of manganese is more stable?
What is meant by ‘disproportionation’?
What are alloys?
Write the factors which are related to the colour of transition metal ions.
Metallic radii of some transition elements are given below. Which of these elements will have highest density?
| Element | \[\ce{Fe}\] | \[\ce{Co}\] | \[\ce{Ni}\] | \[\ce{Cu}\] |
| Metallic radii/pm | 126 | 125 | 125 | 128 |
Transition elements form binary compounds with halogens. Which of the following elements will form \[\ce{MF3}\] type compounds?
(i) \[\ce{Cr}\]
(ii) \[\ce{Co}\]
(iii) \[\ce{Cu}\]
(iv) \[\ce{Ni}\]
EΘ of Cu is + 0.34V while that of Zn is – 0.76V. Explain.
How is the variability in oxidation states of transition metals different from that of p-block elements?
Assertion (A): Transition metals show their highest oxidation state with oxygen.
Reason (R): The ability of oxygen to form multiple bonds to metals.
Explain the use of different transition metals as catalysts.
