羧酸衍生物发生亲核取代反应的活性次序为() A: RCOCl >; RCOOR’>; RCOOCOR’>; RCONH2 B: RCOCl >; RCOOCOR’>; RCOOR’>; RCONH2 C: RCONH2 >; RCOCl >; RCOOR’>; RCOOCOR’ D: RCONH2 >; RCOCl >; RCOOCOR’>; RCOOR’

羧酸衍生物发生亲核取代反应的活性次序是哪一个？ A: RCONH2 > RCOCl > RCOOCOR’> RCOOR’ B: RCONH2 > RCOCl > RCOOR’> RCOOCOR’ C: RCOCl > RCOOCOR’> RCOOR’> RCONH2 D: RCOCl > RCOOR’> RCOOCOR’> RCONH2

羧酸衍生物发生亲核取代反应的活性次序哪个是正确的？ A: RCOCl > RCOOR’> RCOOCOR’> RCONH2 B: RCOCl > RCOOCOR’> RCOOR’> RCONH2 C: RCONH2 > RCOCl > RCOOR’> RCOOCOR’ D: RCONH2 > RCOCl > RCOOCOR’> RCOOR’

羧酸衍生物发生亲核取代反应的活性次序哪个是正确的？ A: RCOCl > RCOOR’> RCOOCOR’> RCONH2 B: RCOCl > RCOOCOR’> RCOOR’> RCONH2 C: RCONH2 > RCOCl > RCOOR’> RCOOCOR’ D: RCONH2 > RCOCl > RCOOCOR’> RCOOR’

羧酸衍生物发生亲核取代反应的活性次序是哪一个？ A: RCONH2 > RCOCl > RCOOCOR’> RCOOR’ B: RCONH2 > RCOCl > RCOOR’> RCOOCOR’ C: RCOCl > RCOOCOR’> RCOOR’> RCONH2 D: RCOCl > RCOOR’> RCOOCOR’> RCONH2

羧酸衍生物发生亲核取代反应的活性次序为() A: RCOCl > RCOOR’> RCOOCOR’> RCONH2 B: RCOCl > RCOOCOR’> RCOOR’> RCONH2 C: RCONH2 > RCOCl > RCOOR’> RCOOCOR’ D: RCONH2 > RCOCl > RCOOCOR’> RCOOR’

羧酸衍生物发生亲核取代反应的活性次序哪个是正确的？ A: RCOCl > RCOOR’> RCOOCOR’> RCONH2 B: RCOCl > RCOOCOR’> RCOOR’> RCONH2 C: RCONH2 > RCOCl > RCOOR’> RCOOCOR’ D: RCONH2 > RCOCl > RCOOCOR’> RCOOR’

通式为RCONH2的化合物属于()

下列物质最易发生酰化反应的是（）。 A: RCOOR B: RCOR C: RCOX D: （RCO）O E: RCONH

下列官能团极性最大的是（ ）。 A: Ar-OH B: R-OH C: R-NH2 D: R-CHO E: RCONH2