Chemistry

Problem

Which of the following is arranged in order of increasing melting point? a.

\text{Zn} < \text{Cu} < \text{Ni} < \text{Fe}

\text{Fe} < \text{Ni} < \text{Cu} < \text{Zn}

\text{Ni} < \text{Fe} < \text{Zn} < \text{Cu}

\text{Cu} < \text{Zn} < \text{Fe} < \text{Ni}