7-sinf kimyo 21-25& Tuzuvchi: Mirsalikov Mirziyod

---

7-sinf KIMYO 21-25&                                     Tuzuvchi: Mirsalikov Mirziyod 

1. Vodorod xona haroratida qaysi metallmas bilan ta’sirlashadi?                                                                                                                 

A) Ftor                                B) Xlor                           C) Brom                       D) Yod   

2. Vodorod izotoplari ichidan suyuqlanish harorati eng kattasini qaysi olim kashf etgan?                                                                       

A) Kavendish                    B) Yuri                           C) Olifamta                 D) Lavuazye  

3. Otquloq bargida qaysi kislota uchraydi?                                                                                                                                                          

A) Chumoli kislota          B) Shovul kislota           C) Olma kislota            D) Sirka kislota  

4. Eng yaxshi issiqlik o’tkazuvchi gazni aniqlang.                                                                                                                                               

A) Vodorod                      B) Kislorod                      C) Azot                           D) Karbonat angidrid 

5. Qattiq yonilg’i turini aniqlang.                                                                                                                                                                          

A) Mazut                          B) Vodorod                        C) Spirt                          D) Slanes 

6. Kim tomonidan vodorod to’ldirilgan shar havoga uchirilgan?                                                                                                                       

A) Kavendish                   B) Lavuzye                         C) Sharl                           D) Boyl 

7. Yonuvchanligi natijasida issiqlik bera oladigan material nima deb ataladi?                                                                                                 

A) Yoqilg’i                        B) Yonilg’i                           C) Kul                           D) Barcha javob to’g’ri  

8. O’zbeistondagi qaysi kondan ko’mir qazib olinmaydi? 1.Sharg‘un; 2.Surxondaryo; 3. Boysun; 4.Farg‘ona; 5. Buxoro. 

6. Angren                                                                                                                                                                                                                      

A) 1, 2, 5                          B) 1, 3, 6                               C) 2, 4, 5                       D) 2, 3, 4 

9. Vodorodning deyteriy izotopi kim tomonidan kashf etilgan?                                                                                                                           

A) Kevendish                  B) Yuri                                    C) Olifamta                   D) Lavuazye     

10. Anor  tarkibida qaysi kislota uchraydi?                                                                                                                                                             

A) Olma kislota              B) Limon kislota                   C) Sirka kislota              D) Chumoli kislota 

11. Vodorod normal sharoitda 1 l suvda qancha miqdorda eriydi?                                                                                                              

A) 250 ml                        B) 500 ml                               C) 215 ml                         D) 21,5 ml  

12. Kislota eritmasida to'q sariq rangli metil zarg'aldog'i qanday rangga o’zgaradi?                                                                                 

A) Qizil                            B) Ko’k                                     C) Sariq                            D) Pushti 

13. Qaysi yonilg`i turidan  mineral qoldiq - kul qoladi?                                                                                                                                      

A) Qattiq                        B) Suyuq                                  C) Gaz                              D) Barcha javob to’g’ri  

14O’zbekistonda ko’mir zaxiralari qancha?                                                                                                                                                            

A) 2 mln tonna             B) 2mlrd tonna                        C) 2 trln tonna                 D) 2 ming tonna  

15. Atom holatidagi vodorod quyidagi qaysi modda bilan hona haroratida reaksiyaga kirishmaydi?                                                  

A) Kislorod                     B) Vodorod                              C) Mishyak                       D) Fosfor