The waste from a paper factory contains high amount of hydrochloric acid. How should we treat the waste, before disposal, to make it safe?
A) Treat it with chemicals containing sodium hydroxide B) Treat it with chemicals containing sulphuric acid C) Treat it with chemicals containing sodium chloride D) Treat it with pure hydrochloric acid
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A. Treat it with chemicals containing sodium hydroxide
to neutrlise acid
to neutrlise acid
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