If the original concentration in a zero-order reaction is reduced from 1.5 M to 1.0 M, what happens to the half-life?

University of Ilorin CHM101 2020 past question

1. The half-life changes when the original concentration is reduced to 1.0 M
2. The half-life is decreased when the original concentration is reduced to 1.0 M
3. The half-life is increased when the original concentration is reduced to 1.0 M
4. The half-life is unaltered when the original concentration is reduced to 1.0 M

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