Cho các phản ứng xảy ra theo sơ đồ sau: X+ NaOH phản ứng nhiệt độ thường Y+ Z

Cho các phản ứng xảy ra theo sơ đồ sau:

$\text{X}+\text{NaOH}\stackrel{t^o}{\to }\text{Y}+\text{Z}$

${\text{Y}}_{\left(r\right)}+{\text{NaOH}}_{\left(r\right)}\stackrel{\text{CaO},{\text{t}}^o}{\to }{\text{CH}}_4+{\text{Na}}_2{\text{CO}}_3$

$\text{Z}+2{\text{AgNO}}_3+3{\text{NH}}_3+{\text{H}}_2\text{O}\stackrel{t^{\text{o}}}{\to }{\text{CH}}_3{\text{COONH}}_4+2{\text{NH}}_4{\text{NO}}_3+2\text{Ag}$ 

Chất X là

C. etyl axetat.

Trả lời

Sơ đồ tường minh là:

${\text{CH}}_3\text{COOCH}={\text{CH}}_2+\text{NaOH}\stackrel{t^o}{\to }{\text{CH}}_3\text{COONa}+{\text{CH}}_3\text{CHO}$

${\text{CH}}_3{\text{COONa}}_{\left(r\right)}+{\text{NaOH}}_{\left(r\right)}\stackrel{\text{CaO},t^o}{\to }{\text{CH}}_4+{\text{Na}}_2{\text{CO}}_3$

${\text{CH}}_3\text{CHO}+2{\text{AgNO}}_3+3{\text{NH}}_3+{\text{H}}_2\text{O}\stackrel{t^o}{\to }{\text{CH}}_3{\text{COONH}}_4+2{\text{NH}}_4{\text{NO}}_3+2Ag$