SOF NSO · Experimental and Lab Skills · Quiz
5 real SOF NSO questions on Experimental and Lab Skills. Instant scoring and solutions, no signup — see where you stand in ~3 minutes.
Question 1 of 5
EASYA student adds a few drops of universal indicator to three colourless solutions X, Y and Z kept in separate test tubes. Solution X turns red, Y turns green and Z turns blue. What can the student conclude about the nature of these solutions?