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Three metals of alkaline earth metal gro...

Three metals of alkaline earth metal group `(A,B` and `C`) When reacted with a fixed volume of liquid `Br_(2)` separately gave a product (metal bromides) whose mass is plotted against the mass of metals taken as shown in the figure. From the plot, predict what relation can be concluded between the atomic weight of `A, B` and `C`
a. `C gt B`
b. `B gt A`,
`C lt A lt B`
Data is insufficient to predict

Text Solution

Verified by Experts

(a,b)
Since mass of `Br_(2)` taken is constant, same moles of `MBr_(2)` will be produced in each ease.
Since, `"moles" = ("Mass")/(Mw)`
The heaviest metal will be produce maxmium of product. Hence, the correct order of atomic mass of `A, B, C` is `A lt B lt C`.
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