H) pyridinium

D) pyridinium.

D) thiopyrolium.

D) Reaction of methallation of cyclohexan.

32. The structure benzene by replacement of =CH by =N– being related a:

a) pyridinium;

b) pyrimidine;

c) pyridine;

33. The structure benzene by replacement of =CH by =S– being related a:

a) thiopyrolium;

b) pyrimidine;

c) pyridine;

34. The structure benzene by replacement of =CH by =O– being related a:

e) thiopyrolium;

f) pyrimidine;

g) pyridine;

35. Acetophenon can getting by oxidation of:

a) C₆H₅CH₂OH;

b) C₆H₅OH;

c) C₆H₅-CH-OH

½

CH₃;

d) C₆H₅ - CH₂ - C₆H₅.

36. Conversion of hydrocarbon’s link of molecule in carbonanion is commited by:

a) replaced of another atom;

b) awing of proton;

c) adding of electron;

d) adding of proton.

37. The compound with cyclic structure formulas given following are called:

a) Diazobenzene;

b) 1,4 phenilendiamin;

c) phenildiamin;

d) 2,5 phenilendiamin;

38. Chemical compound with empirical formula CH₂ has relative molecular weight 42 a.u.m. Chemical formula of his substance a:

a) C₃H₆;

b) CH_4;

c) C₂H₄;

_d) C₂H_6.

39. Chemical compound with empirical formula CH₂ has relative molecular weight 28 a.u.m. Chemical formula of his substance a:

a) C₂H₄;

b) CH₄

c) CH₂;

_d) C₂H₆

40. The matter contain 72.73% of carbon and 18.18% hydrogen. The vapor density of matter of hydrogen (D_H) is equal to 22. This mater is:

a) methane;

b) propane;

c) butane;

d) ethane.

41. The combustion of methane (1mol) gives 878 kJ of a heat. What volume of methane needs to be burnt for obtaining 4390 kJ of a heat?

a) 112 L;

b) 56 L;

c) 22.4 L;

d) 44.8 L.

42. To make the distinetion of acetylene from ethylene is possible with the help of the reaction of these substances with:

a) water solution of KMnO₄;

b) bromine water;

c) Ammonia solution of silver oxide;

d) hydrogen bromide.

43. How many secondary atoms of carbon is presented in following skeleton:

a) 4;

b) 2;

c) 1;

Дата добавления: 2014-01-07