e) how can hydrochloric acid be prepared from substance B
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a. conc. H2So4
it is non volatile acid and has high boiling point. it only removes moisture from HCL gas and does not reacts to it.
b. upward displacement method
c. NaCl+H2SO4-->NaHSo4+HCl
d. fuel is wasted and sodium sulphate forms hard crust and make difficult to remove.
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