Which of the following procedures is suitable for identifying the food colouring added to a pastry sample?
A The cathode becomes coated with copper
B Both electrodes gain electrons
C The blue colour of the solution fades gradually
D The anode increases in mass
Answer is A
Ace your next examination by joining our tutorial for that difficult subject. Click Here To Get Started.
JOIN OTHER STUDENTS ON OUR NEW TELEGRAM GROUP AND SHARE WITH FRIENDS. We have the WAEC, GCE, NECO, JAMB ONLINE TUTORIAL CLASS that can help you out.
Tag:2000 waec chemistry past questions and answers, 2000 waec chemistry question, chemistry waec past questions, chemistry waec past questions and answers, waec 2000 chemistry answers, waec 2000 chemistry past questions and answers, waec chemistry past questions, waec chemistry past questions 2000, waec chemistry past questions and answers, waec chemistry past questions and answers 2000