⇒Aldehydes, Ketones and Carboxylic Acids

6. ⇒  (MHT CET 2021 21th September Evening Shift )

Identify the name of following reaction.

Toluene + chromyl chloride $\stackrel{{\mathrm{CS}}_2}{⟶}$ complex $\stackrel{{\mathrm{H}}_3{\mathrm{O}}^{+}}{⟶}$ Benzaldehyde

A. Stephen reaction

B. Etard reaction

C. Rosenmund reaction

D. Wolf-Kishner reaction

7. ⇒  (MHT CET 2021 21th September Evening Shift )

Identify the product formed when benzoyl chloride is reduced by hydrogen using palladium catalyst poisoned with barium sulphate?

A. Chlorobenzene

B. Benzyl alcohol

C. Benzene

D. Benzaldehyde

8. ⇒  (MHT CET 2021 21th September Morning Shift )

Identify the reagent used in following conversion.

A. $\mathrm{CO},\mathrm{HCl}/{\mathrm{AlCl}}_3$

B. ${\mathrm{CrO}}_2{\mathrm{Cl}}_2\cdot {\mathrm{H}}_3{\mathrm{O}}^{+}$

C. $\mathrm{AlH}(\mathrm{i}-\mathrm{Bu}{)}_2,{\mathrm{H}}_3{\mathrm{O}}^{+}$

D. ${\mathrm{CrO}}_3,{\left({\mathrm{CH}}_3\mathrm{CO}\right)}_2\mathrm{O}$

9. ⇒  (MHT CET 2021 20th September Morning Shift )

The reagent used in Gatterman-Koch formylation of arene is

A. CO${}_2$, HCl

B. CrO${}_2$Cl${}_2$

C. CO, HCl

D. DiBAl-H