C₄H₈O có bao nhiêu đồng phân mạch hở phản ứng được với dung dịch NaOH?

Chia sẻ

Một số câu hỏi khác có thể bạn quan tâm.

• Choose a word that has different stress pattern:

  qualify                 surgery                abandon                     animal

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

  The new supermarket is nearby the bank.

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

  He didn’t have the money which were needed for his wife’s operation. 

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

  appear                 address                   area                     agree

• Choose a word that has different stress pattern:

  receive                     complain                      impress                     monthly

• Choose a word that has different stress pattern:

  typical                 apartment                     newspaper                        statement

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

  The fighting started behind of the far goal.

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

  but                     cut                       Sun                       put

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

  relax                  chat                      famous                      calculation

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

  relax                    famous                      remain                    pretend