MCQ
The element or elements whose position is anomalous in the periodic table is
- AHalogens
- B$Fe,\,Co$ and $Ni$
- CInert gases
- ✓Hydrogen
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$(1)$ $2, 4-$Dinitrophenol
$(2)$ $4 -$ Nitrophenol
$(3)$ $2, 4, 5-$Trimethylphenol
$(4)$ Phenol
$(5)$ $3-$Chlorophenol