The melting point of $Zn$ is lower as compared to those of the other elements of the $3d$ series because:
- Athe $d-$orbitals are completely filled
- Bthe $d-$orbitals are partially filled
- C$d-$electrons do not participate in metallic bonding
- Dboth $(A)$ and $(C)$
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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?
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View SolutionThe common oxidation state of scandium $(Sc)$,a transition element,is:
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View SolutionWhich of the following ions exhibit the same value of spin-only magnetic moment? $(A)$ $Ti^{3+}$, $(B)$ $Cr^{3+}$, $(C)$ $Mn^{2+}$, $(D)$ $Fe^{3+}$, $(E)$ $Sc^{3+}$. Choose the most appropriate answer from the options given below.
Match the species in List-$I$ with their correct electronic configuration in List-$II$.
List-$I$ List-$II$ $(1) \ \text{Cr}$ $(A) \ [\text{Ar}] \ 3d^8 4s^0$ $(2) \ \text{Fe}^{2+}$ $(B) \ [\text{Ar}] \ 3d^{10} 4s^1$ $(3) \ \text{Ni}^{2+}$ $(C) \ [\text{Ar}] \ 3d^6 4s^0$ $(4) \ \text{Cu}$ $(D) \ [\text{Ar}] \ 3d^5 4s^1$ $(E) \ [\text{Ar}] \ 3d^6 4s^2$
| List-$I$ | List-$II$ |
| $(1) \ \text{Cr}$ | $(A) \ [\text{Ar}] \ 3d^8 4s^0$ |
| $(2) \ \text{Fe}^{2+}$ | $(B) \ [\text{Ar}] \ 3d^{10} 4s^1$ |
| $(3) \ \text{Ni}^{2+}$ | $(C) \ [\text{Ar}] \ 3d^6 4s^0$ |
| $(4) \ \text{Cu}$ | $(D) \ [\text{Ar}] \ 3d^5 4s^1$ |
| $(E) \ [\text{Ar}] \ 3d^6 4s^2$ |
Medium
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