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Consider the reaction sequence below:

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X is :

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Important Questions on The s-Block Elements

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IMPORTANT
The correct order of thermal stability of hydroxides is
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IMPORTANT
Which one of the following elemental forms is not present in the enamel of the teeth?
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Which one of the following compounds is used as a chemical in certain type of fire extinguishers
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In the flame test of a mixture of salts, a green flame with blue centre was observed. Which one of the following cations may be present?
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Which one of the following alkaline earth metal ions has the highest ionic mobility in its aqueous solution?
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BeO reacts with HF in presence of ammonia to give A which on thermal decomposition produces B and ammonium fluoride. Oxidation state of Be in A is