http://a-levelchemistry.co.uk/OCR%20Chemistry%20A/Unit%201/Unit%201%20resources.html
Topic 1: Atoms, Electrons and Periodicity (but not the bit on successive ionisation energies)
Topic 2: Moles, Equations and Acids (but not the section on titration equations)
There are also some questions on redox on here, but they're too interleaved with questions on Group 2 and 7 to make it easy for you to know which bits to do.
Enjoy!
Ms Elias
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