The waste from a paper factory contains a high amount of hydrochloric acid. How should we treat the waste, before disposal, to make it safe?

see full answer

Your Exam Success, Personally Taken Care Of

1:1 expert mentors customize learning to your strength and weaknesses – so you score higher in school , IIT JEE and NEET entrance exams.

An Intiative by Sri Chaitanya

Treat it with chemicals containing sodium hydroxide

Treat it with chemicals containing sulphuric acid

Treat it with chemicals containing sodium chloride

Treat it with pure hydrochloric acid

answer is A.

(Unlock A.I Detailed Solution for FREE)

Best Courses for You

JEE

NEET

Foundation JEE

Foundation NEET

CBSE

Detailed Solution

Concept- Salt and water are created when bases and acids interact. Neutralisation reactions are those in which acids and bases react to form salts. Take the interaction between sodium hydroxide and hydrochloric acid as an example.
High amount of hydrochloric acid is found from the paper factory waste. We should treat the waste with a chemical containing sodium hydroxide before disposal, to make it safe because it gives us Sodium chloride, which is household, edible salt, and water .
The reaction is
HCl + NaOH→NaCl + H2O
Hence, the correct answer is option (1).

Watch 3-min video & get full concept clarity