MEDIUMMCQ SINGLEJEE Mains ChemistryPhysical ChemistryMole _ Equivalent ConceptMolecular Formula
The simplest formula of a compound containing 50% of an element X (atomic weight 10) and 50% of element Y (atomic weight 20) is :
A.XY
B.X2Y✓ Correct
C.XY₂
D.X2Y₃
Explanation
Let mass of compound = 100 gm Then mass of X = 50 gm Then mass of Y = 50 gm Mole of X = 50/10 = 5 Mole of Y = 50/2.5= 2.5 5 2.5 2 Molecular formula X Y X Y
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