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Two elements A and B form compounds havi...

Two elements A and B form compounds having formula `AB_(2)" and "AB_(4)`. When dissolved in 20g of benzene `(C_(6)H_(6))`, 1g of `AB_(2)` lowers the freezing point by 2.3 K whereas 1g of `AB_(4)` lowers it by 1.3 K. The molar depression constant for benzene is 5.1 K kg `mol^(-1)`. Calculate atomic masses of A and B.

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KUMAR PRAKASHAN-BOARD EXAM QUESTION PAPER MARCH - 2020 -PART -B
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