defence exam SSB Head Constable (Communication) 2023 Mock Test General Science Chemistry Basic Concepts of Chemistry
If the ratio between Iron (Fe) and Sulphur (S) in Iron sulphide (FeS) is 7 ∶ 4 by mass and the total mass of it is 88 amu, what are the masses of Fe and S?
1
Fe = 74 amu & S = 14 amu
2
Fe = 72 amu & S = 16 amu
3
Fe = 56 amu & S = 32 amu
4
Fe = 50 amu & S = 38 amu