give reason Why the ratio weight of alkali is taken higher in ammonia preparation using ammonium chloride.
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reactants NH4Cl and Ca(OH)2 are taken in the ratio of 2 : 3 by weight, higher ratio by weight of the alkali may counteract the loss by sublimation of NH4Cl. ... Calcium hydroxide is used, as it is cheap and not deliquescent like other alkalis.
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