Coal and Diamond are two different form of carbon. which is denser?
2 answers:
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H₂ (g) + F₂ (g) ⇌ 2 HF (g)
- See charge on ion is -1 .
Hence it has taken 1 electron
Now first look at EC of Fluorine(F)
- Now one electron added .hence no of electrons is 10now
Look at the EC
Or
Option C is correct.