Question 1: Insoluble compounds are generally black in color. Which of the following could yield a black precipitate?
1. Na2S(aq) + KCl
2. Li2S(aq) + Pb( NO3)2 (aq)
3. Pb(ClO3)2 + NaNO3(aq)
4. AgNO3(aq) + KCl(aq)
5. K2S( aq)+ Sn(NO3)4 (aq)
Question 2: Will precipitate form?
Equation: NaOH + HClO4
Question 3: Will precipitate form?
FeCl2 + KOH
Dear Student, The PbS ( is black)... View the full answer