Properties of Oxygen

Q.

Encircle the odd one from the list given below:-

Breathing, Slow combustion, Rapid combustion, Respiration

Q. The strength of the oxyacids decreases in the following order

1. $HN{O}_3>H_{3}P{O}_4=H_{3}As{O}_4>H_{3}Sb{O}_4$
2. $HN{O}_3>H_{3}P{O}_4>H_{3}As{O}_4>H_{3}Sb{O}_4$
3. $HN{O}_3>H_{3}P{O}_4>H_{3}Sb{O}_4>H_{3}As{O}_4$
4. $HN{O}_3>H_{3}P{O}_4>H_{3}As{O}_4=H_{3}Sb{O}_4$

Q. $O\left(g\right)+e^{-}⟶O^{-}\left(g\right),△H_{eg}=-ve$

1. True
2. False