Four successive members of the first series of the transition metals are listed below. For which one of them is the standard electrode potential $(E^o_{M^{2+}/M})$ value positive?
- A$Co (Z = 27)$
- B$Ni (Z = 28)$
- C$Cu (Z = 29)$
- D$Fe (Z = 26)$
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Similar Questions
The electronic configuration of $Gd^{2+}$ is (at. no. of $Gd$ is $64$)
Match the statements given in List-$I$ with the oxidation states given in List-$II$:
List-$I$ List-$II$ $A$. Oxidation state of $Mn$ in $MnO_2$ $i$. $+2$ $B$. Most stable oxidation state of $Mn$ $ii$. $+3$ $C$. Maximum stable oxidation state of $Mn$ in oxides $iii$. $+4$ $D$. Characteristic oxidation state of Lanthanoids $iv$. $+5$ $v$. $+7$
| List-$I$ | List-$II$ |
|---|---|
| $A$. Oxidation state of $Mn$ in $MnO_2$ | $i$. $+2$ |
| $B$. Most stable oxidation state of $Mn$ | $ii$. $+3$ |
| $C$. Maximum stable oxidation state of $Mn$ in oxides | $iii$. $+4$ |
| $D$. Characteristic oxidation state of Lanthanoids | $iv$. $+5$ |
| $v$. $+7$ |
Medium
View SolutionAll transition elements are $d$-block elements,but all $d$-block elements are not transition elements. Explain.
Medium
View SolutionWhich of the following arrangements does not represent the correct order of the property stated against it?
Match the following:
List-$I$ List-$II$ $A$. Titanium $I$. Non-metal $B$. Fluorine $II$. Transition metal $C$. Tellurium $III$. Lanthanoid $D$. Dysprosium $IV$. Metalloid
| List-$I$ | List-$II$ |
|---|---|
| $A$. Titanium | $I$. Non-metal |
| $B$. Fluorine | $II$. Transition metal |
| $C$. Tellurium | $III$. Lanthanoid |
| $D$. Dysprosium | $IV$. Metalloid |
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