The correct orders among the following are

Atomic radius : $\mathrm{B}<\mathrm{Al}<\mathrm{Ga}<\mathrm{In}<\mathrm{Tl}$

Electronegativity : $\mathrm{Al}<\mathrm{Ga}<\mathrm{In}<\mathrm{Tl}<\mathrm{B}$

Density : $\mathrm{Tl}<\mathrm{In}<\mathrm{Ga}<\mathrm{Al}<\mathrm{B}$

1st Ionisation Energy : $\mathrm{In}<\mathrm{Al}<\mathrm{Ga}<\mathrm{Tl}<\mathrm{B}$

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10 mL of 2 M NaOH solution is added to 20 mL of 1 M HCl solution kept in a beaker. Now, 10 mL of this mixture is poured into a volumetric flask of 100 mL containing 2 moles of HCl and made the volume upto the mark with distilled water. The solution in this flask is :

$$ \text {In the following series of reactions identify the major products } \mathrm{A} \& \mathrm{~B} \text { respectively } $$

Identify the diamagnetic octahedral complex ions from below ;

A. $\left[\mathrm{Mn}(\mathrm{CN})_6\right]^{3-}$

B. $\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_6\right]^{3+}$

C. $\left[\mathrm{Fe}(\mathrm{CN})_6\right]^{4-}$

D. $\left[\mathrm{Co}\left(\mathrm{H}_2 \mathrm{O}\right)_3 \mathrm{~F}_3\right]$

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