Three test tubes contain solutions of substances: hydrochloric acid, sulfuric acid, sodium hydroxide.

Three test tubes contain solutions of substances: hydrochloric acid, sulfuric acid, sodium hydroxide. Suggest a way to distinguish between these solutions.

1) Add phenolphthalein. One of the solutions will be colored with raspberry-sodium hydroxide NaOH.
2) Silver (I) nitrate is added to the remaining solutions. In a test tube with hydrochloric acid HCl, a white precipitate – AgCl – precipitates.
3) The remaining solution, with which there were no changes, is sulfuric acid H2SO4

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