Correct Answer - 4
Arsentic sublimes at `615^(@)C`. The boiling points, in general increases from top to bottom in the group but the melting point increases upto arsenic and then decreases up to Bismuth ,Thus arsenic has the highest boiling point while bismuth has the highest boiling point. Also note that `Sb` and `Bi` have the fairly charcateristic long liquid range. (`Sb: 631^(@)C` to `1387^(@)C` while `Bi: 271^(2)C` to `1564^(@)C`).
