Part (a) - Compound E

Here are the solutions based on common observations for these qualitative analysis tests. Since no observations were provided in the tables, I will assume typical results that lead to a clear identification.

Part (a) - Compound E

• Experiment: To $2\text{cm}^3$ of a solution of E in a Pyrex test tube, add aqueous $\text{AgNO}_3$ followed by dil $\text{HNO}_3$ and finally, conc $\text{NH}_3$.
  • Observations:
    • A white precipitate forms upon adding aqueous $\text{AgNO}_3$.
    • The white precipitate remains after adding dilute $\text{HNO}_3$.
    • The white precipitate dissolves upon adding concentrated $\text