MCQ
To carry out above conversion reagent used in decreasing order.


- A$Na/ liq. NH_3 , CHBr_3 /NaOH (\Delta)$
- ✓$H_2 /Pd - CaCO_3, CHBr_3 /NaOH (\Delta)$
- C$Na/liq. NH_3 ,CHCl_3 /NaOH$
- D$H_2 /Pd- CaCO_3, CHCl_3 /NaOH$


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$ \mathrm{CH}_3-\mathrm{CH}_2-\mathrm{CH}\left(\mathrm{NO}_2\right)-\mathrm{COOH} $
$ \mathrm{CH}_3-\mathrm{CH}_2-\mathrm{CHBr}-\mathrm{CH}_2-\mathrm{CH}_3 $
$ \mathrm{CH}_3-\mathrm{CH}(\mathrm{I})-\mathrm{CH}_2-\mathrm{NO}_2 $
$ \mathrm{CH}_3-\mathrm{CH}_2-\mathrm{CH}(\mathrm{OH})-\mathrm{CH}_2 \mathrm{OH} $
$ \mathrm{CH}_3-\mathrm{CH}-\mathrm{CH}(\mathrm{I})-\mathrm{C}_2 \mathrm{H}_5 $