RRB Junior Engineer / DMS / CMA 2019 · Question 187 of 3719

The chemical formula of gypsum is ?

Answer: D. $$CaSO_4.2H_2O$$

Official answer key verified. Detailed explanation coming soon.

Source: RRB JE 2019 CBT-1 (1-June-2019 Shift 1) — cracku.in solved paper with answer key · reliable-secondary

Practice the full RRB Junior Engineer / DMS / CMA 2019 paper

Timed test with all 3719 questions, just like the real exam.