Question

Oxygen will directly react with each of the following elements except?

• A. P
• B. CI
• C. Na
• D. S

Answer 1

Answer: (B)

CI

Answer 2

Out of P, Na, S and Cl, chlorine does not react
directly but Na, P and S react with oxygen directly.
$\, \, \, \, \, \, \, P_4 + 5O_2 \longrightarrow \, P_4O_{10}$
$\, \, \, \, \, \, \, \, \, S + O_2 \longrightarrow \, SO_2$
$\, \, \, \, \, \, \, 4Na + O_2 \longrightarrow \, 2Na_2O$