Exam 21: Main Group Elements I: Groups 1, 2, 13, and 14

Which of the following metals has been used commercially in certain drain cleaners, along with solid sodium hydroxide, for the purpose of generating hydrogen gas by reaction with hydroxide ion after contact with water?

Which of the following is uncharacteristic of the alkali metals?

An analysis of a Solvay plant show that for every 4.30 tons of NaCl consumed, 4.75 tons of NaHCO₃ is obtained. What is the % efficiency of this process for converting NaCl to NaHCO₃?

Which of the following react with water without the formation of H₂ gas as a product?

Choose the INCORRECT statement.

Which of the following metal hydroxides has the lowest solubility?

The molecular geometry for HCN is ________.

Choose the INCORRECT statement.

In the production of the metal by an electrolysis process, which of the following is the most costly in terms of amount of electricity required per ton of metal produced from its salt?

Which of the following is uncharacteristic of the alkali metals?

Hydrogen peroxide may act only as an oxidizing agent.

Metal oxides generally form an acidic solution in water.

What average current is required to form 5.7 grams of aluminum per hour by the electrolytic reaction?

In a nonmetal hydroxide the oxygen-hydrogen bond is generally less polar than the nonmetal-oxygen bond.

Which of the following metals is refined by some means other than electrolysis?

Write an equation for the roasting of PbS.

Choose the INCORRECT statement about Na₂CO₃.

The only by-product obtained in the Solvay process is:

Finish the following reaction: SnO₂ + NaOH(aq) →

Complete the reaction: SiO₂ + 2 C