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Ethene can be prepared in the school laboratory using the arrangement of apparatus shown in Diagram 1
(2009)
The clock glasses shown in the diagram contained pure samples of the following salts: KCl, KNO3,
The scientist pictured on the right used charged oil drops to determine the size of the charge on a sub-atomic particle. Name the scientist, and the sub-atomic particle involved in his experiments
Define first ionisation energy of an element.
Define (i) hydrocarbons, (ii) structural isomers.
