chemistry 79-104

80. Combustion of ethylamine is accompanied by the formation of carbon dioxide, water, and :

• 1) ammonia

• 2) nitrogen

• 3) nitrogen (II) oxide

• 4) nitrogen (IV) oxide

81.The product of reaction of butene-1 with chlorine is

•  1) 2-Chlorobutene-1

•  2) 1 ,2-Dichlorobuten

•  3) 1,2-Dichlorobutene-1

•  4) 1,1-Dichlorobutene

82.   The dehydration of propanol-1 results in the formation of

• 1) propanol-2

• 2) propane

• 3) propane

• 4) propyne

83.An alkaline hydrolysis of fats produces

• 1) glycerol and water

• 2) carboxylic acids and water  

• 3) glycerol and carboxylic acids

• 4) glycerol and soaps

84.The number of σ-bonds in a butene molecule is 2

• 1) 4

• 2) 6

• 3) 9

• 4) 11

85.  Number of σ-bonds in a benzene molecule

• 1) 6

• 2) 12

• 3) 18

• 4) 24

86.Number of σ-bonds in a molecule of 2-methylbutane

• 1) 6

• 2) 8 

• 3) 14 

• 4) 16

87.Number of σ-bonds in a butadiene-1,2 molecule

• 1) 4

• 2) 6 

• 3) 9 

• 4) 11

88.  Oxidation of acetic aldehyde produce

• 1) methanoic acid

• 2) butyric acid

• 3) propionic acid

• 4) ethanoic acid

89.Oxidation of ethanol with copper(II) oxide produces

• 1) formaldehyde

• 2) acetaldehyde

• 3) formic acid

• 4) diethyl ether