Question

1. Which one of the following compounds is insoluble in water?

a. BaSO₄

b. KNO₃

c. Na₂SO₄

d. Li₂CO₃

 

2. Which one of the following compounds is soluble in water?

a. Cu₃(PO₄)₂

b. Co(NO₃)₂

c. CdS

d. CaCO₃ 

 

3. The mixing of which pair of reactants will result in a precipitation reaction?

a.  

b.  

c.  

d.  

 

4. Which of the following compounds is not an Arrhenius acid?

a. H₂SO₃

b. HClO

c. KOH

d. HF

 

5. When dissolved in water, of HClO₄, NH₃, KOH, HI, and CH₃OH which are acids?

a. HClO₄ and HI

b. NH₃ and KOH

c. only KOH

d. only HI