Kimyo. (1 Qism)


A)SO42- B) NO3- C) S2- D) CO 2-


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A)SO42- B) NO3- C) S2- D) CO 2-


  1. 50 g CaCO3 xlorid kislotani 7,3 % 300 g eritmasiga solindi. Hosil bo’lgan eritmaning massasini ( ) toping

A) 219 B) 217,8 C) 336,8 D) 316,8





  1. 51 g AgNO3 natriy ftoridning 5 % 168 g eritmasiga solindi. Hosil bo’lgan eritmaning massasini ( ) toping.

A) 219 B) 217,8 C) 336,8 D) 316,8





  1. 45g Al2S3 xlorid kislotaning 20 % li 219g eritmasiga solindi. Hosil bo’lgan eritmaning massasini ( ) toping.

A) 330 B) 217,8 C) 336,8 D) 316,8





  1. CO va CH4 dan iborat aralashmaning zicgligi o’zgarmas bosim va 109,2 haroratda 0,93 g/l ga teng. Aralashmaning normal sharoitdagi zichligini ( ) toping.

A) 1,3 B) 0,8 C) 1,116 D) 1,344





  1. CO2 va CH4 dan iborat aralashmaning zicgligi o’zgarmas bosim va 109,2 haroratda 0,893 g/l ga teng. Aralashmaning normal sharoitdagi zichligini

( ) toping.

A) 1,1 B) 1,25 C) 1,45 D) 1,65





  1. [Ni(CO)4]. Ushbu komleks birikmalarning bitta zarrachasida nechta donor – akseptor bog’i bo’ladi? A) 5 B) 4 C) 8 D) 12




  1. [Co(CO)4]. Ushbu komleks birikmalarning bitta zarrachasida nechta donor – akseptor bog’i bo’ladi? A) 5 B) 4 C) 8 D) 12




  1. [Fe(CO)5]. Ushbu komleks birikmalarning bitta zarrachasida nechta donor – akseptor bog’i bo’ladi? A) 5 B) 4 C) 8 D) 10




  1. Birikmalarda III valentli metallning massalari o’zaro teng bo’lsa, shu metall fosfatining massasi 24,4 g, sulfatining massasi 34,2 g bo’lsa, xloridining massasini aniqlang.

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