. Tick the most appropriate answer.

Sodium burns in oxygen with a flame which is:

The correct option is B

golden yellow in colour

• Sodium burns in oxygen with a golden-yellow flame.
• When burning sodium is taken into the cylinder of oxygen, it burns with a brilliant golden yellow flame to form sodium oxide.
• The given reaction is:
• $\underset{\mathrm{Sodium}}{4\mathrm{Na}\left(\mathrm{s}\right)}+\underset{\mathrm{Oxygen}}{{\mathrm{O}}_2\left(\mathrm{g}\right)}\to \underset{\mathrm{Sodium}\mathrm{Oxide}}{2{\mathrm{Na}}_2\mathrm{O}\left(\mathrm{s}\right)}$

So, the correct answer is an option (B)