Q155. If a mixture contains O2 and N2 in a weight ratio of 1:4, what is the corresponding ratio of the number of their molecules?Chemistry — NUST Mock By IBAGRADS 4 — Question 155 of 200A. 7:32B. 1:4C. 2:1D. 4:1Practice more Chemistry MCQs for entrance exam preparation on Examora.io.← Previous Question Next Question →