Kimyo. (1 Qism)


A) 32,5 B) 26,7 C) 31,7 D) 30, 9


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A) 32,5 B) 26,7 C) 31,7 D) 30, 9





  1. Birikmalarda III valentli metallning massalari o’zaro teng bo’lsa, shu metall fosfatining massasi 50,05 g, sulfatining massasi 67,2 g bo’lsa, xloridining massasini aniqlang. A) 47,55 B) 48,75 C) 50 D) 54




  1. Birikmalarda III valentli metallning massalari o’zaro teng bo’lsa, shu metall pirofosfatining massasi 25,4 g, fosfatining massasi 20,66 g bo’lsa, nitratining massasini aniqlang.

A) 36 B) 37,6 C) 32,8 D) 29,6





  1. Birikmalarda III valentli metallning massalari o’zaro teng bo’lsa, shu metall

pirofosfatining massasi 30,3 g, fosfatining massasi 27,93 g bo’lsa, sulfatining massasini aniqlang.

A) 31,2 B) 34,8 C) 28,4 D) 22





  1. Birikmalarda III valentli metallning massalari o’zaro teng bo’lsa, shu metall pirofosfatining massasi 24,75 g, fosfatining massasi 21,2 g bo’lsa, sulfatining massasini aniqlang.

A) 35,5 B) 34,5 C) 26,1 D) 17,9





  1. Birikmalarda III valentli metallning massalari o’zaro teng bo’lsa, shu metall fosfatining massasi 42,7 g, sulfatining massasi 59,85 g bo’lsa, bromidining massasini (g) aniqlang. 104,4 B) 93,45 C) 38,85 D) 98,4




  1. FeCl3 + K4[Fe(CN)6] … reaksiya mahsulotlarini toping.

  1. Fe3[Fe(CN)6]2 + KCl

  2. Fe4[Fe(CN)6]3 + KCl

  3. Fe(CN)3 + KCl

  4. Fe3[Fe(CN)6]4 + KCl




  1. FeSO4 + K3[Fe(CN)6] … reaksiya mahsulotlarini toping.

  1. Fe3[Fe(CN)6]2 + K2SO4

  2. Fe3[Fe(CN)6]2 + K2SO4

  3. Fe(CN)3 + K2SO4

  4. Fe3[Fe(CN)6]4 + K2SO4




  1. Ca(C3H5O3)2 nH2O. Ushbu modda tarkibida massa jihatdan 13,8 % kalsiy bo’lsa, n ning qiymatini toping.

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