1.An example efflorescence compound is A. BaCl B. KOH C. CaCl2D. Na2CO.10H2O 2.Which of the following compounds will form solution when exposed to air? A. Na2CO.10H2O B. NaNO3 C. CuSO4D. CaCl2

3. The following salts dissolve readily in water except A. CaCl2 B. Na2SO4 C. (NH4)2SO4D. PbSO4

4. Water in crystalline salts provides A. hydrated bonds and colour B. colour and shape C. Colour and solubility base D. Shape and crystal lattice

ESSAY QUESTIONS

1.Give three general methods of preparing salts .1(i). Give equations for the examples.

2i. How would you prepare pure dry potassium trioxonitrate(V). 2ii. What product is always is obtained in the neutralization reaction?

3i. What is salt? Give four examples. (3ii) What is obtained when water is driven out from a hydrated salt by heat?

4. Name two salts which can be prepared by titration and, describe two methods of preparing soluble salts.

5. When is a substance said to be deliquescence. Explain with examples.

6. Common salt (NaCl) becomes wet on exposure to air. Explain.

7. What are dehydrating agents? Explain the function of fused calcium (II) chloride in the desiccator.

Thank you SO much in advance. You're a really helpful being. sorry its lenghty.