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The two test-tubes on the left in the diagram contain pure samples of A and B, different gaseous hydrocarbons, one of which is unsaturated
(2016)
In an investigation into the decomposition of a hydrogen peroxide solution, using a manganese(IV) oxide catalyst, the volume of oxygen produced was monitored with time.
A dipositive ion, M2+, has 25 electrons and 32 neutrons.
The diagram shows the relationship between the visible lines in the hydrogen spectrum and the corresponding energy levels in a hydrogen atom.
Name the oil refining process shown in the diagram. Naphtha is a mixture of hydrocarbons of similar relative molecular masses.
