Choose the word whose main stress is pronounced differently from that of the others.

  1. A. famous                           B. workshop                            C. bamboo                               D. village

  2. A. design                            B. mention                              C. prefer                                  D. consist

  3. A. handicraft                      B. lacquerware                        C. fabulous                              D. determine  

4. A. regconition                     B. affordable                           C. independent                       D. adolescence

5. A. contest                            B. fortress                               C. astounding                          D. setting       

6. A. household                       B. tunnel                                 C. igloo                                   D. respect

7. A. mushroom                      B.demand                               C.sandal                                  D. tunnel

8. A. exchange                                    B.exhibit                                 C.cosmopolitan                       D.extended

9. A. collective                        B.elevate                                 C.facility                                 D.initial

10. A. religious                        B.calendar                               C. situate

PHONETICS

   Choose the word whose underlined part is pronounced differently from that of the others.

1. A. conducts                         B. wonders                              C. loves                                   D. plays

2. A. attraction                        B. question                              C. concentration                     D. emotion

3. A. limestone                        B. citadel                                 C. pilgrim                                D. rickshaw

4. A. complex                          B. wonder                               C. backdrop                            D. proper

5. A. structrue                         B. measure                              C. sculpture                             D. plumber

6. A. worked                           B. lived                                   C. washed                               D. stopped

7. A. happen                           B. vehicle                                C. exhibition                           D. exhaust  

8. A. treasure                           B. pleasure                              C. ensure                                 D. measure

9. A. childhood                       B. champagne                         C. chapter                               D. charity

10. A. satisfied                        B. matched                              C. thatched                             D. depressed

.Dẫn 1,12 lít khí cacbonic ở đktc qua bình đựng 200ml dd natri hidroxit.Sau phản ứng thu được muối natri cacbonat.

a.       Viết PTHH xảy ra

b.      Tính khối lượng muối thu được

c.       Tính nồng độ mol NaOH cần dùng

Câu 4.Cho 1,73 gam hỗn hợp gồm 2 kim loại kẽm và bạc tác dụng với axit sunfuric loãng thu được 0,224 lít khí hidro ở đktc.

a.       Viết PTHH xảy ra?

b.      Tính phần trăm theo khối lượng mỗi kim loại trong hỗn hợp đầu

c.       Tính khối lượng muối thu được