MCQ
How many bridging oxygen atoms are present in $P_4O_{10}$
- A$4$
- B$2$
- C$5$
- ✓$6$
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| Bromine | $Na$ metal | Chromic acid | Lucas reagent | |
| Compound $X$ | decolourises | bubbles | Orange to Green | No reaction |
| Compound $Y$ | No reaction | No reaction | No reaction | No reaction |
Compound $X$ and $Y$ respectively are


