level: Level 1 of Praticals
Questions and Answers List
level questions: Level 1 of Praticals
| Question | Answer |
|---|---|
| reducing sugar | benedicts solution and heat Red – Reducing sugar present Blue – Reducing sugar not present |
| non reducing sugar | do 1st test add an bendedicts and heat. ( reducing sugar) then add acid and heat to break the bonds add alkali (neutralise acid) add benedicts and heat Red –sugar present Blue – sugar not present |
| test for starch | add iodine to the substance a blue/black colour change should be observed |
| test for protein | Add copper sulphate Add sodium hydroxide colour change to purple indicates present |