Chemistry · Periodic Classification and Mole Concept
In a compound having molecular formula XY, element 'X' belongs to the 3rd period and the 2nd group, whereas element 'Y' belongs to the 2nd period and the 16th group. What is the relative molecular mass of the compound XY?
- 150 u
- 264 u
- 335 u
- 440 u✓
Correct answer
40 u
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