Question 1
The Solvay process involves a reaction of sodium chloride, ammonia and carbon dioxide in aqueous solution. Of the various possible products, the one least soluble in water is:
◦ ammonium bicarbonate
◦ "baking soda" (NaHCO
3)
◦ "sal ammoniac" (NH
4Cl)
◦ "table salt" (NaCl)
◦ "washing soda" (Na
2CO
3)
Question 2
Tl is different from Al, Ga, and In in that:
◦ Tl has a much different electronegativity
◦ Tl has a much different first ionization energy
◦ Tl commonly forms compounds with +1 oxidation state
◦ Tl forms metal hydroxides that are amphoteric
◦ Tl commonly forms compounds with +3 oxidation state
