MCQ
Which reagent is useful in converting $1-$ butanol to $1-$ bromobutane
- A$CHB{r_3}$
- B$B{r_2}$
- C$C{H_3}Br$
- ✓$PB{r_3}$
$3C{H_3}C{H_2}C{H_2}C{H_2} - Br + {H_3}P{O_3}$
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trans $\left( Ph - CH = CH - CH _3\right) \rightarrow$ cis $\left( Ph - CH = CH - CH _3\right)$
| Column $-I$ | Column $-II$ | ||
| $(a)$ | $[Pt(NH_3)_3Cl]Br$ | $(P)$ | Coordination isomerism |
| $(b)$ | $[Cr(NH_3)_5(NCS)]^{+2}$ | $(Q)$ | Ionisation isomerism |
| $(c)$ | $[Co(H_2O)_6]Cl_3$ | $(R)$ | Linkase isomerism |
| $(d)$ | $[PtCl_4] [Pt(NH_3)_4]$ | $(S)$ | Hydrated isomerism |