Acetaldehyde can be prepared by

Question

Acetaldehyde can be prepared by (A) CH3CH2Br xrightarrow[Δ]KCN(alc) xrightarrow[(ii) H2O/Δ](i) SnCl2/HCl, textether (B) CH ≡ CH +H2O xrightarrowH2SO4 (C) CH2 = CH2 xrightarrow[ textHigh Temperature, pressure]CO, H2, (Co(CO)4)2  (D) CH3COOH xrightarrowCaCO3 xrightarrowΔ

Tardigrade Admin · Accepted Answer

CH3CH2Br xrightarrow[Δ]KCN(alc) underset textPropane nitrileCH3CH2CN xrightarrow[(ii)H2O/Δ](i) snCl2/HCl, textEther underset textPropanaldehydeCH3CH2CHO CH ≡ CH +H2O xrightarrowH2SO4 CH3CHO CH2 = CH2 +CO +H2 xrightarrow[ textHighT,P](Co(CO)4)2 underset textOxoprocessCH3CH2CHO CH3COOH xrightarrowCaCO2(CH3COO)2 Ca xrightarrow[-CaCO3]Δ(CH3)2CO

Q. Acetaldehyde can be prepared by

$C H_{3} C H_{2} B r K CN (a l c) Δ (i) S n C l_{2} / H Cl, ether (ii) H_{2} O /Δ$

$C H \equiv C H + H_{2} O H_{2} S O_{4}$

$C H_{2} = C H_{2} CO, H_{2}, (C o (CO)_{4})_{2} High Temperature, pressure$

$C H_{3} COO H C a C O_{3} Δ$

Q. Acetaldehyde can be prepared by

CH3​CH2​BrKCN(alc)Δ​(i)SnCl2​/HCl,ether(ii)H2​O/Δ​

CH≡CH+H2​OH2​SO4​​

CH2​=CH2​CO,H2​,(Co(CO)4​)2​High Temperature, pressure​

CH3​COOHCaCO3​​Δ​

$C H_{3} C H_{2} B r K CN (a l c) Δ (i) S n C l_{2} / H Cl, ether (ii) H_{2} O /Δ$

$C H \equiv C H + H_{2} O H_{2} S O_{4}$

$C H_{2} = C H_{2} CO, H_{2}, (C o (CO)_{4})_{2} High Temperature, pressure$

$C H_{3} COO H C a C O_{3} Δ$