Q155. X grams of calcium carbonate (CaCO3) were heated strongly until complete decomposition. The mass of the solid residue formed was 28 g. What is the value of X?Chemistry — NUST Mock By IBAGRADS 2 — Question 155 of 200A. 44 gB. 200 gC. 150 gD. 50 gPractice more Chemistry MCQs for entrance exam preparation on Examora.io.← Previous Question Next Question →