MCQ
A certain element forms a solid oxide which when dissolved in water forms an acidic solution, the element is
- AArgon
- BPotassium
- ✓Phosphorus
- DSulphur
✓
Answer
Correct option: C.
Phosphorus
c
(c) ${P_4} + 5{O_2}\, \to \,2{P_2}{O_5}$ ;
(c) ${P_4} + 5{O_2}\, \to \,2{P_2}{O_5}$ ;
${P_2}{O_5} + 3{H_2}O \to 2{H_3}P{O_4}$
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