TG EAMCET 29 Apr 2025 Shift 2 Paper
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Question : 142 of 160
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Elements A and B form two non-volatile compounds ( AB 2. and AB 4 ) . When 1 g of AB 2 is added to 20 g of C 6 H 6 (molar mass = 78 g mol − 1 ) the freezing point of C 6 H 6 is lowered by 2.3 K . When 1 g of AB 4 is added to 20 g of C 6 H 6 , the freezing point of C 6 H 6 was lowered by 1.3 K . The atomic masses of A and B are respectively
( K f ( C 6 H 6 ) = 5.1 Kkg mol − 1 )
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