Which statement is false? * a.) Pressure must be exerted on a sample of a gas in order to confine it.
b.) Gases diffuse into each other and mix almost immediately when put into the same
container.
c.) The molecular weight of a gaseous compound is a non-variable quantity
d.) Gases can be expanded without limit.
e.) The density of a gas is constant as long as its temperature remains constant.

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.