MCQ
Which one has a pyramidal structure
- A$C{H_4}$
- ✓$N{H_3}$
- C${H_2}O$
- D$C{O_2}$
This is due to the presence of lone pair of electron.
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The mass (in $\mathrm{mg}$ ) of $\mathrm{S}$ obtained is. . . . . . . [Use molar mass (in g mol ${ }^{-1}$ ) : $\mathrm{H}=1, \mathrm{C}=12, \mathrm{~N}=14, \mathrm{Br}=80$ ]
$(1) \,LAH (LiAlH_4)$ $(2) \,OsO_4$
$(3)\, NaIO_4$ $(4)\, NaBH_4$