A student investigated the sacrificial protection of iron by wrapping four identical iron bolts with different metal wires (zinc, copper, magnesium, and tin). They placed each bolt into a separate boiling tube and added 25 cm325\text{ cm}^325 cm3 of sodium chloride solution to each tube.
State why a measuring cylinder is adequate, rather than a volumetric pipette, to measure the 25 cm325\text{ cm}^325 cm3 of sodium chloride solution.
Practise Edexcel GCSE Chemistry Transition metals, alloys and corrosion with exam-style questions for Foundation and Higher tier. 97 questions, matched to the Edexcel GCSE Chemistry (1CH0) specification and written in Paper 1 and Paper 2 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.
