Muskan Trivedi posted an Question
July 21, 2022 • 14:45 pm 30 points
  • IIT JAM
  • Chemistry (CY)

Common data for q.9, q.10 and q. 1n methyl ethyl ether (a) and diborane (b) form a compound, which melts congruently at 133 k. the system exhibits two eutectics

Common data for Q.9, Q.10 and Q. 1n Methyl ethyl ether (A) and diborane (B) form a compound, which melts congruently at 133 K. The system exhibits two eutectics, one at 25 mole percent B and 123 K and a second at 90 mole percent B and 104 K. The melting points of pure A and B are 131 K and 110 K, respectively: 9. The phases at 55 mole present B and 108 K are, (a) solid AB and a solid B phase (C) Solid B and a liquid phase (b) Solid AB and a liquid phase (d) Solid A and a liquid phase. 10. What happens if a small amount of solid B is added to the above mixture while keeping the temperature constant' (a) Added B forms compound AB (b) added B precipitates out (c) overall liquid phase percentage increases with respect to the overall solid phase (d) Complete solidification takes place. 1. The mixture at 25 mole percent B and at 124 K is cooled slowly to 114 K. The resulting phases are (a) Solid AB and Solid A (b) Solid AB and liquid (c) Solid AB and solid B ALquid and solid A TY

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    Laxman ram

    Methyl ether (A) and diborane, B2H6 (B) form a compound that melts congruently at 133 K. The system exhibits two eutectics, one at 25 mol per cent B and 123 K and a second at 90 mole percent B and 104 K. The melting points of pure A and B are 131 K and 110 K respectively.

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