MCQ
Select the suitable reagent for above conversion.


- ✓$CH_2N_2 / \Delta$
- B$CBr_4 / RLi$
- C$H_2C = CH_2$
- D$t- BuOK$

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$A.$ $SO _{4}^{2-}$ and $CrO _{4}^{2-}$
$B.$ $SiCl _{4}$ and $TiCl _{4}$
$C.$ $NH _{3}$ and $NO _{3}^{-}$
$D.$ $BCl _{3}$ and $BrCl _{3}$
$BCl _{3}$ and $BrCl _{3}$
