Why sociology is part of pure science?

Sociology is a science, it is just one that does not primarily rely on positivism, a specific philosophy of science that emphasises observation and falsification as the critical elements to science. However, science encompasses a broader range of interests than simply observables (for example, unobservables like consciousness, personality, or ideas) and falsifying hypotheses (for example, other things like mechanisms, causation, understanding, prediction, and interpretation). Under different auspices, sociology is a science, though its methodologies are not exactly like the physical sciences such as physics or chemistry.