Welcome to the Quiz!
This quiz contains 5 questions from a mix of 1 subtopics.
Which of the following reagents is a colourless solution containing complexed silver ions?
Tollens' reagent
Fehling's solution
acidified potassium dichromate
alkaline iodine solution
|
What is the observation when an aldehyde is warmed with Tollens' reagent?
the solution turns from orange to green
a silver mirror forms on the test tube walls
a red precipitate forms
the solution remains colourless
|
What is the observation when a ketone is warmed with Tollens' reagent?
a red precipitate forms
a yellow precipitate forms
a silver mirror forms on the test tube walls
the solution remains colourless
|
Which of the following contains blue copper(II) complex ions dissolved in aqueous sodium hydroxide?
acidified potassium dichromate
Fehling's solution
Tollens' reagent
alkaline iodine solution
|
What is the observation when an aldehyde is warmed with Fehling's solution?
a brick-red precipitate forms
a yellow precipitate forms
the solution remains blue
a silver mirror forms on the test tube walls
|