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ALLEN-S-BLOCK ELEMENTS -EXERCISE
- Of the following the commonly used as a laboratory desiccator is
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- Lithophone is a combination of ZnS and
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- Which of following equality with NaCI
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- The thermal stability of alkaline earth metal carbonates MgCO(3),CaCO(...
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- At anode in the electrolysis of fused NaCI:
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- One mole of magnesium nitride on reaction with an excess of water give...
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- Which alkali metal on flame test given red violet colour
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- In presence of iron, alkali metal react with liquid ammonia and form
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- The ionic conductance of following cation in a given concentration are...
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- Photoelectric effect is the maximum in
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- Which of the following carbides on treatment with water give methane ...
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- When a standard solution of NaOH is left in air for a few hours:
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- The ionic mobility of alkali metal ions in aqueous solution is maximum...
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- Which is used in purification of air in the space craft.
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- Which of the following alkaline earth metal sulphate is least soluble ...
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- In aqueous solution, the largest ion is :
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- The correct order of ionic character of oxides of alkali earth metal:-
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- Potassium super-oxide (KO(2)) is used in space capsuled, submarines, a...
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- Compounds of alkaline earth metals are generally less soluble in water...
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- The melting point of NaCI is high because:-
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