5. Practical Skills
Practical Endorsement — Quiz
Test your understanding of practical endorsement with 5 practice questions.
Practice Questions
Question 1
Selecting the most suitable titrant and indicator for a weak acid–weak base titration demonstrates which practical competence?
Question 2
Which record-keeping practice ensures traceability of procedural modifications during a multi-step experiment?
Question 3
To demonstrate social responsibility, a student replaces single-use plastic weighing boats with biodegradable alternatives. Which aspect of the Practical Endorsement does this reflect?
Question 4
During weighing, a student realises an error in the initial mass reading of a reagent. What is the appropriate action according to good record-keeping practice?
Question 5
A student measures a liquid volume three times: $10.23\,\mathrm{cm}^3$, $10.25\,\mathrm{cm}^3$ and $10.22\,\mathrm{cm}^3$. What is the mean volume and its standard deviation (to two significant figures)?