Chemistry Past Questions and Answers

A gas occupies 30.0 dm<sup style='font-size: smaller;'>3</sup> at S.T.P. What volume would it occupy at 91<sup style='font-size: smaller;'>o</sup>C and 380 mm Hg?

When excess ethanol is heated to 145 <sup style='font-size: smaller;'>o</sup>C in the presence of concentrated sulphuric acid, the product is

Which of the following raw materials would be required from the smelting of iron ore in a blast furnace?

A piece of metal (M) is dissolved in nitric acid and the resulting solution is treated with a small quantity of sodium hydroxide to produce a white precipitate (B) which redissolves on the addition of excess alkali. The precipitate (B)when ignited in a crucible produces the oxide of the metal(m). The METAL M is

Pick out the correct statement