I – kimyodan asosiy tushunchalar

5-MAVZU:
MURAKKAB MODDA TARKIBIDAGI ELEMENTLARNING
MASSA ULUSHINI(%) TOPISH.

1. H₂O ushbu moddadagi kislorodning massa ulushini(%) toping.

A) 11,11 B) 88,89 C) 2,04 D) 63,3

2. H₂S ushbu moddadagi vodorodning massa ulushini(%) toping.

A) 2,04 B) 11,11 C) 63,3 D) 5,88

3. H₂SO₄ ushbu modda tarkibidagi barcha elementlarning massa ulushini(%) toping.

A)H=2,04 S=32,653 O=65,3
B)H=2,44 S=32,653 O=63,3
C)H=2,04 S=33,653 O=63,3
D)H=1,04 S=33,653 O=63,3

4. HNO₂ ushbu modda tarkibidagi barcha elementlarning massa ulushini(%) toping.

A)H=2,128 N=29,78 O=68,09
B)H=2,128 N=28,78 O=69,09
C)H=1,128 N=30,78 O=68,09
D)H=2,128 N=27,78 O=69,09

5. H₃PO₄ ushbu modda tarkibidagi barcha elementlarning massa ulushini(%) toping.

A)H=2,06 P=31,63 O=63,3
B)H=3,06 P=31,63 O=65,3
C)H=3,06 P=31,63 O=62,3
D)H=3,56 P=30,63 O=65,3

6. Al₂(SO₄)₃ ushbu modda tarkibidagi barcha elementlarning massa ulushini(%) toping.

A)Al=13,79 S=28,07 O=56,14
B)Al=15,79 S=27,07 O=57,14
C) Al=15,79 S=26,07 O=58,14
D)Al=15,79 S=28,07 O=56,14

7. Mg₃(PO₄)₂ ushbu modda tarkibidagi barcha elementlarning massa ulushini(%) toping.

A)Mg=27,48 P=23,66 O=48,86
B)Mg=39,7 P=20 O=40,3
C)Mg=36,7 P=22 O=41,3
D)Mg=33,7 P=25 O=41,3

8. C₃H₈ ushbu modda tarkibidagi barcha elementlarning massa ulushini(%) toping.

A)C=61,81 H=38,18
B)C=71,81 H=28,18
C)C=81,81 H=18,18
D)C=51,81 H=48,18
9. C₃H₈S ushbu modda tarkibidagi barcha elementlarning massa ulushini(%) toping.
A)C=47,4 H=10,5 S=42,1
B)C=49,4 H=10,5 S=40,1
C)C=45,4 H=12,5 S=42,1
D)C=47,4 H=12,5 S=40,1

10. C₄H₉O ushbu modda tarkibidagi barcha elementlarning massa ulushini(%) toping.

A)C=63,75 H=12,33 O=25,92
B)C=65,75 H=10,33 O=23,92
C)C=63,75 H=14,33 O=21,92
D)C=65,75 H=12,33 O=21,92

11. Cu₂(OH)₂CO₃ ushbu modda tarkibidagi barcha elementlarning massa ulushini(%) toping.

A)Cu=55,66 H=2,9 C=5,4 O=36,04
B)Cu=57,66 H=0,9 C=5,4 O=36,04
C)Cu=55,66 H=1,9 C=6,4 O=36,04
D)Cu=57,66 H=2,9 C=3,4 O=36,04

12. Cu₂S ushbu modda tarkibidagi barcha elementlarning massa ulushini(%) toping.

A)Cu=60 S=40 B)Cu=70 S=30
C)Cu=80 S=20 D)Cu=65 S=35

13. Mg(NO₃)₂ ushbu modda tarkibidagi barcha elementlarning massa ulushini(%) toping.

A)Mg=16,22 N=18,92 O=64,86
B)Mg=17,22 N=17,92 O=64,86
C)Mg=18,22 N=16,92 O=64,86
D)Mg=16,22 N=18,92 O=65,86

14. NH₄NO₃ ushbu modda tarkibidagi barcha elementlarning massa ulushini(%) toping.

A)N=30 H=10 O=60 B)N=30 H=5 O=65
C)N=35 H=5 O=60 D)N=35 H=10 O=55

15. NH₄NO₂ ushbu modda tarkibidagi barcha elementlarning massa ulushini(%) toping.

A)N=43,75 H=6,25 O=50 B)N=35 H=5 O=60
C) N=53,75 H=6,25 O=40 D) N=25 H=5 O=70
16. (NH₄)₂SO₄ ushbu modda tarkibidagi barcha elementlarning massa ulushini(%) toping.
A)H=4,06 N=23,21 S=24,24 O=48,48
B)H=6,06 N=21,21 S=24,24 O=48,48
C)H=4,06 N=21,21 S=26,24 O=48,48
D)H=3,06 N=21,21 S=27,24 O=48,48

17. Na₂HPO₃ ushbu modda tarkibidagi barcha elementlarning massa ulushini(%) toping.

A)Na=34,5 H=0,79 P=26,6 O=38,1
B)Na=36,5 H=2,79 P=22,6 O=38,1
C)Na=38,5 H=0,79 P=22,6 O=38,
D)Na=36,5 H=0,79 P=24,6 O=38,1
18. (NH₄)H₃P₂O₇ ushbu modda tarkibidagi barcha elementlarning massa ulushini(%) toping.
A)N=5,18 H=5,59 P=31,8 O=57,4
B)N=6,18 H=4,59 P=29,8 O=59,4
C)N=4,18 H=6,59 P=30,8 O=58,4
D)N=7,18 H=3,59 P=31,8 O=57,4

19.AlP ushbu modda tarkibidagi barcha elementlarning massa ulushini(%) toping.

A)Al=43,55 P=56,45 B)Al=53,55 P=46,45
C)Al=40,55 P=59,45 D)Al=46,55 P=53,45

20. Ca₃N₂ ushbu modda tarkibidagi barcha elementlarning massa ulushini(%) toping.

A)Ca=40 N=60 B)Ca=81,08 N=18,92
C)N=81,08 Ca=18,92 D)Ca=60 N=40

21. C₄H₅N ushbu modda tarkibidagi barcha elementlarning massa ulushini(%) toping.

A)C=70,64 H=8,46 N=20,9 B)C=73,64 H=5,46 N=20,9
C)C=72,64 H=5,46 N=21,9 D)C=71,64 H=7,46 N=20,9
22. Al(OH)₂Cl ushbu modda tarkibidagi kislorod elementining massa ulushini(%) toping.
A)28 B)2,07 C)33,16 D)36,8

23. Na₂S₂O₃ ushbu modda tarkibidagi natriy elementining massa ulushini(%) toping.

A)29,11 B)46 C) 33,16 D)31,8

24. NaBrO₃ ushbu modda tarkibidagi natriy elementining massa ulushini(%) toping.

A)28 B)15,23 C)45,83 D)31,8

25. HMnO₄ ushbu modda tarkibidagi marganes elementining massa ulushini(%) toping.

A)0,833 B)45,83 C)53,3 D)55

26. H₂MnO₄ ushbu modda tarkibidagi kislorod elementining massa ulushini(%) toping.

A)1,65 B)45,45 C)52,9 D)64

27. NaOH ushbu modda tarkibidagi kislorod elementining massa ulushini(%) toping.

A)57,5 B)40 C)2,5 D)16

28. Na[Cr(OH)₄] ushbu modda tarkibidagi xrom elementining massa ulushini(%) toping.

A)16,08 B)36,36 C)2,8 D)44,75

29. Cr(OH)₃ ushbu modda tarkibidagi vodorod elementining massa ulushini(%) toping.

A)50,5 B)48 C)2,91 D)46,6

30. Dolomit tarkibidagi kalsiy elementining massa ulushini(%) toping.

A)21,74 B)13,04 C)52,17 D)40