Question

The oxide which on dissolving in water turns blue litmus red is

• A. $Sb_2O_3$
• B. BaO
• C. $P_2O_5$
• D. $As_2O_3$

Answer 1

Answer: (C)

$P_2O_5$

Answer 2

Because $P_2O_5$ is acidic in nature.