Which have melting point below $500\,^{\circ} C$.
Which have melting point below $500\,^{\circ} C$.
- [AIIMS 2019]
- A
$Zn ,\, Cd$
- B
$Ag , \,Cu$
- C
$Cd , \,Cu$
- D
$Ag , \,Zn$
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- [AIPMT 1994]
Calculate the number of unpaired electrons in the following gaseous ions: $Mn ^{3+}, Cr ^{3+}, V ^{3+}$ and $T i^{3+} .$ Which one of these is the most stable in aqueous solution?
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In the series $Sc(Z = 21)$ to $Zn(Z = 30)$ , the enthalpy of atomization of _____ is the lowest
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The correct order of decreasing third ionisation enthalpy of $Ti, \,V,\, Cr,\, Mn$ is
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Explain trends in $M^{2+}/M$ standard electrode potentials.
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