Cho các chất etyl axetat, anilin, metyl aminoaxetat, glyxin, tripanmitin. Số chất tác dụng được với dung dịch NaOH là.         

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Một số câu hỏi khác có thể bạn quan tâm.

• Choose the best answer for the following sentence:

  "_______________ care of that necklace - it’s very valuable.”
  
  

• Choose the best answer for the following sentence:

  Jenny is ______________ on holiday for a week.

• Choose the best answer for the following sentence:

  Sun-Young avoids ________________ underwear at the thrift store.

• Choose the best answer for the following sentence:

  The girls agreed _____________ the cake equally. 

• Find a mistake in the four underlined parts of the sentence and correct it:

  A wedding in a Greek village is really worth to be seen.

• Find a mistake in the four underlined parts of the sentence and correct it:

  I closed the door as quiet as I could.

• Find a mistake in the four underlined parts of the sentence and correct it:

  He started his talk with an explanation on the difference among accent and dialect.

• Choose the word that has the underlined part pronounced differently from the rest: 

  stay                     manage                      may                        play

• Choose the word whose stress is on the second syllable:

  college                 student                   member                       enrich

• Choose the word whose stress is on the second syllable:

  voluntary                  hospital                     victory                        sufficient