Your basic rights are contained in the 1979 sale of goods act, as amended and improved in one particular respect by the 1994 Sale and supply of goods act
Goods must be the sellers to sell. Seems obvious so do not buy from the man in the pub or you may find you do not become the legal owner. It does not matter that both you and the man in the pub are totally innocent the villainy of the original thief can affect you. The law says (in Latin) no one gives what they have not got.
The description of the goods must be accurate.
The goods must be of satisfactory quality. This had a limited but important effect on the law the original form was “merchantable quality” a term with uncertain legal meaning, it was changed to Satisfactory. But remember everything is taking into account.
Goods should be fit for their purpose. Your original point, it is covered by section 14 (3) of the sale of goods act 1979.