An udentified substance, y, was thought to be one of the following three compounds.
compound: a
melting point: 132 °c
compound: b
melting point: 133 °c
compound: c
melting point: 134 °c
y was mixed with each of the above compounds and the melting point of each mixture was determined. the following results were obtained.
mixture: y + a
melting point: 114 – 129 °c
mixture: y + b
melting point: 132 – 133 °c
mixture: y + c
melting point: 86 – 99 °c
deduce the identity of y. briefly explain your answer.
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