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Question $17$

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p Flag question

The suitable extracting solvent to isolate p$-$toluidine from diethyl ether and the to precipitate it is by:

$-$Q$2$M$)$ Hydrochloric acid, then $(10$M$)$ sodium hydroxide.

none of all

$110M)$ Sodium hydroxide, then $(2$M$)$ hydrochloric acid.

$(10$M$)$ Sodium hydroxide, then CaCl$2$