Substance Y is a gas at room temperature (20 ∘C20\ ^\circ\text{C}20 ∘C). It is a simple molecular, covalent substance.
Which row in the table shows the properties that substance Y is most likely to have?
| Row | Boiling point (∘C^\circ\text{C}∘C) | Electrical conductivity |
|---|---|---|
| A | -15 | Good |
| B | 1200 | Poor |
| C | -15 | Poor |
| D | 1200 | Good |
Row A
Row B
Row C
Row D
