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Yellow ppt. is insoluble in acetic acid and soluble in NaOH. PbCrO4 + 4NaOH Na2PbO2 + Na2CrO4 + 2H2O (iii) PbCl2 forms yellow ppt. with potassium iodide ... Appearance: White powder (sometimes light-yellowish) | hygroscopic/ when dissolved in water a colloidal black solution is formed. Sulphide (S2– ). Take 1 mL of water extract and make it alkaline by adding ammonium hydroxide or sodium carbonate extract. Add a drop of sodium nitroprusside. Sodium hydroxide solution (NaOH), a white precipitate of magnesium hydroxide is formed not soluble in excess of the reagent but soluble in ammonium chloride ... Ammonium chloride NH4Cl y y y y y y. Ammonium hydroxide NH4OH y y y y y t y y ... Sodium aluminate NaAlO2 y y. Sodium bicarbonate NaHCO3 y y y y y y y y. Feb 1, 2018 ... NaAlO2(dd) + NH4Cl + H2O → NH3 + NaCl + Al(OH)3 (điều kiện: ອຸ່ນຫະພູມປົກກະຕິ) 16. Mg + CO2 → MgO + C (đk: ປະມານ 500ອົງສາ C) 17. Mg + SiO2 → MgO + Si ( ... After cooling add a small amount of solid ammonium chloride (NH4Cl) and an excess of ammonium ... + NaOH → NaAlO2. + 2H2O. White gelatinous. Sodium precipitate. stand. ANALYSIS OF CATIONS: 1. Test for Group Zero Ammoniacal smell is evolved on Presence of Ammonium Ion Cations (NH4)+ adding NaOH Solution ... Al(OH)3 + NaOH -> NaAlO2 + H2O. (CuOH)2CO3 -> CuO + CO2 + H2O. SrBr2 + (NH4)2CO3 -> SrCO3 + NH4Br. H2O2 -> H2O + O2. Ca(ClO3)2 -> CaCl2 + O2. PCl5 + H2O -> ... Feb 24, 2025 ... Ammonium chloride is predominantly ionic, while hydrogen fluoride and hydrogen chloride display partial ionic characteristics due to the ...