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Elements of Groups 16, 17 and 18 — Chemistry STD 12 Science — Question

Maharashtra BoardEnglish MediumSTD 12 ScienceChemistryElements of Groups 16, 17 and 182 Marks
Question
Who prepared hydrochloric acid first?
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Answer

Glauber in 1648 , first prepared hydrochloric acid by heating common salt $NaCl$ with concentrated $H _2 SO _4$.
$2 NaCl + H _2 SO _4(\text { conc. }) \xrightarrow{\Delta} Na _2 SO _4+2 HCl$

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