MCQ
The telluric helix was given by
- ✓De Chan Courtois
- BNewlands
- CL. Meyer
- DMendeleef
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$C{H_3}COOH\xrightarrow{{LiAl{H_4}}}A\mathop {\xrightarrow{{{H^ + }}}}\limits_{443\,K} B\xrightarrow{{B{r_2}}}C\mathop {\xrightarrow{{alc.}}}\limits_{KOH} D$