3. ria 3 (bx(i) Pb(NO₂)₂ + distilled water (i) Portion from (b)(i) + NaOH in drops Copy and complete the following table stating what would be herved in each test were performed as indicated. (iii) Portion from (b)(i) + NH, in drops 3(aq) (b) (c) then in excess (iv) Portion from (b)(i) + KI (d) (e) TEST then in excess (a) Name a suitable drying agent for each of the following gases: (i) NH₂; (ii) CO₂ State two chemical tests that could be used to show that a sample of bread contain starch and protein. Explain briefly each of the following statements: (i) (ii) OBSERVATION (iii) HCl though a covalent compound, conducts electricity in solution; dry sodium chloride crystals with traces of calcium chloride gets hydrated when exposed to the atmosphere. Name a liquid substance that could be used in the laboratory for: dissolving dry mortar on floor tiles; (i) removing KMnO, stains; drying acid anhydrides. A solution of HCl was titrated with sodium hydroxide solution. State three precautions that are necessary when carrying out the experiment.
