Biology examination questions.
ZIMSEC Prac exam questions. There are usually three questions on Paper 4....
ZIMSEC Prac exam questions. There are usually three questions on Paper 4....
Scientific drawings. They are an important part of the of biology practical...
Reaction of Manganese, Mn2+ Color : pale pink, almost colourless Test Observations...
Reaction of Cr3+ Its colour is green. A solution of Cr3+ is...
Reaction of iron(ii), Fe2+ Colour : pale green, almost colourless. Test Observation...
Reaction of Copper, Cu2+ Cu2+(aq) (pale blue) 1ons can be obtained b...
Qualitative Analysis Invariably involves detection or identification of cation(s) and or anion(s)...
Reducing Agents Commonly used reducing agents include; KI-iodides; Sodium thiosulphate -thiosulphate ions...
Oxidizing Agents Common used oxidizing agents include; KMnO4 K2CrO7 H2O2 *usually requires...