Solution:Concept- You need to be conversant with the words used in the question in order to respond. Data can be classified as either quantitative or qualitative. Processes like volumetric, potentiometric titration, etc. are all part of quantitative analysis.
The colour of the substance is a qualitative trait. Qualitative traits are those that can be observed without the aid of calculations or measurements.
Hence, the correct answer is option (1).