Agiven substance is a white, granular solid at 25 °c that does not conduct electricity. it melts at 750 °c wand the melt conducts electricity. it dissolves easily in water and produces a conductive solution. identify the type of crystal and justify your answer.

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Name a brittle metal , which is used to galvanize iron

Benzonitrile (c6h5cn) is reduced to two different products depending on the reducing agent used. treatment with lithium aluminum hydride followed by water forms k, which has a molecular ion in its mass spectrum at 107 and the following ir absorptions: 3373, 3290, 3062, 2920, and 1600 cm-1. treatment with a milder reducing agent forms l, which has a molecular ion in its mass spectrum at 106 and the following ir absorptions: 3086, 2850, 2820, 2736, 1703, and 1600 cm-1. l shows fragments in its mass spectrum at m/z = 105 and 77. propose structures for k and l and choose an explanation for how this could be concluded.