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Aluminium trifluoride is insoluble in anhydrous HF but dissolves on the addition of NaF. Aluminium trifluoride precipitates out of the resulting solution when gaseous BF3 is bubbled through. Give reasons.
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What happens when BF3 is reacted with ammonia?
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How would you explain the lower atomic radius of Ga as compared to Al?
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In some of the reactions thallium resembles aluminium, whereas in others it resembles with group I metals. Support this statement by giving some evidences.
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What do you understand by inert pair effect?
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Write a balanced equation for Al + NaOH → ?
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Write a balanced equation for B2H6 + NH3 → ?
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Explain why is sodium less reactive than potassium?
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Compare the alkali metals and alkaline earth metals with respect to (i) ionization enthalpy (ii) basicity of oxides and (iii) solubility of hydroxides
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Compare the solubility and thermal stability of the following compound of the alkali metals with those of the alkaline earth metals.
Nitrates
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Compare the solubility and thermal stability of the following compounds of the alkali metals with those of the alkaline earth metals.
Carbonates
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Compare the solubility and thermal stability of the following compounds of the alkali metals with those of the alkaline earth metals.
Sulphates
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Starting with sodium chloride how would you proceed to prepare sodium hydroxide.
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Starting with sodium chloride how would you proceed to prepare sodium peroxide.
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Starting with sodium chloride how would you proceed to prepare sodium carbonate?
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The hydroxides and carbonates of sodium and potassium are easily soluble in water while the corresponding salts of magnesium and calcium are sparingly soluble in water. Explain.
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What happens when sodium peroxide dissolves in water?
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Comment on the following observation:
The mobilities of the alkali metal ions in aqueous solution are Li+ < Na+ < K+ < Rb+ < Cs+
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State as to why alkali metals are prepared by electrolysis of their fused chlorides?
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How would you explain the following observation?
BeO is almost insoluble but BeSO4 in soluble in water.
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