Choose the answer
how is a crystal lattice related to a unit cell?
a. a crystal lattice is a highly-ordered example ofa unit cel.
b. a crystal lattice forms from several unit cells that overlap and merge.
c. a crystal lattice is a very large unit cell.
d. a crystal lattice is a repeating array of unit cells.

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.