ALKANE
1.Which substance is called “chloroform “ ?
A) CH3Cl B) CH2Cl2
C) CHCl3 D)CHCl2F
2.When 2 moles of a four carbon hydrocarbon is burned , 10 moles of oxygen gas is used up. The molecular formula of hydrocarbon is :
A) C4H8 B) C4H6 C) C4H10 D) C4H4
3.In Wurtz reaction , bromides of ethyl and propyl are used .So , the product(s) would be ......
1. C4H10 2. C5H12 3. C6H14
A) 1 B) 2 C) 3 D) none of them
4.Which one of the following alkanes is not produced by Wurtz Synthesize?
A) C2H6 B) CH4 C) C3H8 D) C4H10
5.Which is the compound whose 2.24 lt is 3 g at STP? (C : 12, H : 1, O : 16).
A) CH4 B) C3H8 C)C2H4 D) C2H6
6.Which alkyl halide must be used to obtain ethane by the substitution reaction of H2?
A) CH3Br B) C2H5Br
C) C2H6 D) C3H8Br
7.How many liter of air is needed to burn the 4,48 liters of butane gas?
A) 75 B) 72,8 C) 291,2 D) 145,6
8.According to reaction what is x ?
9. For saturated hydrocarbons ;
- General formula is CnH2n+1
- Increasing the number of Carbon; increases boiling point
- sp3 hybrid orbitals are used
Which one(s) is/are correct?
A) I B) II C) II – III D) I – III
10.What is the formula of an alkane of which 0.25 mole is 11g ?
A) C2H4 B) C3H8 C) C3H4 D) C3H6
11. C2H5Br + Mg X
X + H2O Y + Z
What is the substance represented by “Y” in the above reaction?
A) C2H4 B) C2H6 C) C4H8 D) C4H10
12.
A) C3H8 B) C3H6 C) C3H10 D) C4H8
13.which alkyl pairs must be used to obtain n-pentane?
A) methyl – propyl B) ethyl – propyl
C) propyl – propyl D) ethyl – butyl
14. 0.2 mole of an alkyl bromide weighs 19g. This alkyl bromide is used in the production of an alkane by Wurtz synthesis. If 1 mole of this alkane is burned, how many moles of CO2 can be obtained?
A) 1 B) 2 C) 3 D) 4
15.
- cyclo butane
- 2 - butyne
- 1 - butene
Which compound or compounds form/forms 0,8 mole H2O when each of them with 0,2 mole is burned with enough oxygen?
A) IB) IIC) I - II D) I - III
16.Which compound doesn't change the color of Br2 solution?
A) C2H2 B) C2H4 C) C3H4 D) CH4
17.When 8,8 gram of an alkane isburned; 26,4 gram of CO2 is produced. What is the formula of this Hydrocarbon?(C: 12, O: 16)
A) C2H6 B) C3H8 C) C4H10 D) C5H12
18.How many liter of air is needed to burn 1,4 liter of ethane?
A) 4,9 B) 7,5 C) 13,8 D) 24,5
19.How many liter of air is needed to burn the 88 gram of propane at STP?
A) 318,3 B) 954,4 C) 1120 D) 477,2
20. 0.1 mole of an organic substance burns in 0.3 mole oxygen to produce 0.2 mole CO2 and 0.3 mole H2O. What is the formula of the organic substance?
A) C2H6O B) C3H8 C) C2H4O D) C2H6
21.
what is the mass of aliminium carbide ?
A)37.6 B)28.5 C)16.4 D)7.2
22. 0.2 mole of an alkane burns to form 10.8g of H2O. which one of the following must be used to produce this alkane through Wurtz synthesis?
A)CH3BrB)C2H5Br
C)C3H7BrD)C4H9Br
23. How many moles of O2 are needed to burn 0.5 mole of an alkane which has been orbtained from the reaction between CH3COONa and NaOH?
A) 1 B) 2 C) 2.5 D) 3
24. How many moles of O2 are required to burn 2 moles of an alkane formed from C2H5COONa and NaOH?
A) 2 B) 4 C) 6 D)7
25.How many gram of CH4 must be used to obtain 11 gram of CO2 after reaction? (C: 12, H: 1)
A) 2 B) 4 C) 6 D) 8
26. 0.2 moles of an alkane yeilds 18g of H2O when it is burned. Which of the following must be used to obtain these alkane by Wurtz synthesis,
A)C2H5Br
B)CH3Br
C)n- propylbromide
D)isopropyl bromide
27. 80 % of an alkane is carbon. What is the formula of alkane?
A) C2H6 B) C3H8 C) C2H8 D) C4H10
28. 4.48 liters of a gas shown by the general formula Cn H2n+2 is 6 grams at STP. What is “n” in the formula?
A) 1 B) 2 C) 3 D) 4
29. In the compound shown with the generalformulaCnH2n+2Which is the correct formula for this compound?
A)CH4 B)C2H6 C)C3H8 D) C4H10
30. What is the gas having the general formula CnH2n+2 and 58 g/mole molecular mass?
A)C4H10 B)C 4H8 C)C3H8 D)C5H10
31. How many grams of Al4C3 must be used to obtain 6.72 l of CH4at STP conditions .(Al:27,C:12)
A) 0,36 B) 7,2 C) 14,4 D) 2,16
32. To burn 20 lt of a mixture of C2H4 and C3H8 gases, 70 liters of O2 is needed under the same conditions. What is the volume of C2H4 in the mixture?
A)5 B)7.5 C)10 D)15
33. How many moles of O2 are required to burn 1 mole of an alkane whose 0.25 mole produces 16.8 lt CO2 when it is burned under STP?
A)1.5 B) 2.5 C) 3.0 D)5.0
34.What is the name of the substance X in the reaction?
A) benzene B)bromobenzene
C) methane D) toluene
35. When 3,2 g of hydrocarbon is burned in excess amount of O2 at STP condition; 4,48L of CO2 and 7,2 g of H2O are produced. What is the molecular formula of this organic compound?
A) C4H8 B) C2H4 C) CH4 D) C2H6
36. 10 cm 3 of a gas containing C and H reacts with 50 cm3 of O2 and forms 30 cm3 of CO2 gas and a certain amount of water under the same conditions. What is the formula of this compound?
A) C3H4 B) C3H6 C) C3H8 D) C4H6
37.When 0,88 gram of an organic compound is burnt, 2,2 gram of CO2 and 1,08 gram of H2O are formed. What is the simplest formula of compound?
A) (C5H12O)n B) (C5H12)n
C) (CH3)n D) (C4H9O)n
38.When 0,1 mole of hydrocarbon is burned completely; 0,2 mole of CO2 and 0,3 mole of H2O are produced. What is the chemical formula of this hydrocarbon?
A) C2H2 B) C2H4 C) C2H6 D) C4H6
39. Which organic compound can be produced from the reaction below?
40.What is the formula of alkane if 2,2 grams of RCOONa reacts with 0,8 grams NaOH?
(Na:23, H:1, O:16)
A)C2H6 B)C3H8 C)C3H4 D)C5H12
41.When a 0.1 mol of an alkane is burned 7.2 g of water vapor is produced. What is the formula of the alkane?
A)C3H8 B)C2H6 C)CH4 D)C4H10
42. How many moles of carbondioxide are produced by burning out 30 g of ethane?
A)5 mol B)6 mol C)4 mol D)2 mol
43. One method to synthesize saturated hydrocarbons is Wurtz reaction whose general equation is.
What is the formula of alkane produced with the reaction of 2-bromobutane with Na?
A) N - octane
B) 2 methylhexane
C) 3,4 –dimethylhexane
D)3-methylexane
44. What is the condensed formula of the compound for which 0.3 mole of it is 21 grams?
A) C2H2 B) C3H6 C) C4H8 D)C5H10
45.What is the formula of compound, 15 grams of which produces 1 molCO2 when burned? (C:12,H:1)
A) C2H2 B)C2H4 C)C2H6 D) C3H8
46.When 0.1 mole sample of an alkane is burned 0.4 mole of water vapor is produced. What is the formula of the alkane?(C: 12 , H: 1 , O: 16 )
A) C3H8 B) C2H6 C) CH4 D) C4H10
47.After burning 12 gram organic compound 0.6 mol CO2and 0.8 mol H2O are formed. What is the emperical formula of organic matter?
A)C3H8O2B)C3H8O
ALKENE
49.Which of the following substances will turn KMnO4 solution rapidly from purple to colorless ?
A)methane B) ethane
C) ethene D)propane
50.Which one of the following substances will turn bromine water rapidly from orange-red to colorless ?
A) CH4 B) C3H8 C) C4H10 D) C2H4
52.What is the type of following reaction ?
A) Combustion Reaction
B) Addition Reaction
C) ExtractionReaction
D) Wurtz Reaction
54.In this equation:
, the coefficient of O2 in the balanced equation is
A)B)
C)D)
58.For a hydrocarbon.
- There are cıs and trans isomers
- When 1 mole of this compound is burned; 6 moles of O2 are consumed
- It doesn’t consist of a ring.
What is the chemical formula of this hydrocarbon
A)C4H8B)C4H10 C)C5 H12 D)C4H6
61. Which one belongs to the olefines?
A) C2H2 B) C4H8 C) C2H6 D) C3H4
65.
Product is expected
I.
II.
III.
A) I B) II C) III D) I – III
67. Which organic compound can be produced from the reaction below?
A) Ethylene B) Propanal
C) Ethanol D) Styrene
68. Which type of organic compound can be produced from the reaction below?
A) AlkyneB) Alcohol
C) AlkaneD) Alkene
69.Which compound has a capability to undergo addition reaction of Hydrogen?
A) butane B) ethane
C) 1,2 – difluoroethylene D) CCl4
70.If 1 mole of H2O is removed from 1 mol of propyl alcohol ,which one of the followings is produced ?
A)Propane B)Propene C)Propyne D)Acetone
ALKYNES
76. What hydrocarbons have common formula CnH2n-2?
A) Ethylene B) Cycloparaffines
C)Acetylene D)Saturatedhydrocarbons
77.Which one is a member of the acetylene class?
A) C2H4 B) C2H6 C) C3H4 D) C3H6
80. What is the coefficient of O2 in the combustion reaction of a hydrocarbon having the general formula CnH2n-2 ?
A) B)
C) D)
81.
Which compound is expected to be formed?
A)2 - butyne
B)1 - butyne
C)2 - butene
D)butane
83.Which one has an ability to make addition reaction of hydrogen?
A)C2H6 B)C2H5OH C)C2H4Br2D)C2H2
86. What is the hydrocarbon which forms a white precipitate with ammoniacal AgNO3solution and decolorizes bromine solution?
A) CH4 B) C2H6 C) C2H4 D) C2H2
92. Which of the following alkynes cannot react with ammoniacal solution?
96.Which organic compound can be produced from the reaction below?
A) EthyleneB) Propane
C) AcetyleneD) Methanol
98. What is the formula of compound if 10g of CnH2n-2 is burned to give 9 gram of H2O?
A) C2H2 B) C3H4 C) C4H6 D) C2H4
CLASSİC QUESTİONS
101. complete the following reactions.
106.
Determine molecular formulas of X and Y.
107. Write structural formulae of and names of the alcohols which have the molecular formula of
a. C3H8O
b. C4H10O
108. Which alcohols are used as reactants to produce the following ethers?
a.
b.
110.
In the reaction above, 15,8g of
(R-COO)2Ca produces 10g of CaCO3. Find the formula of ketone produced.
113. Draw the structural formulas of the following compounds:
a) cis -2 ,3 -dichloro-2-butene
b) p-bromotoluene
c) methyl t-butyl ether
d) 2,3-butanediol
e) 2-butanone
114. Write the equations for each of the following reactions,
a) Propene + Hydrogen
b) 1-butyne + Hydrogen (excess)
117. When methyl iodide reacts with 2-iodobutane in the presence of sodium metal which hydrocarbon is produced?
118. Complete the following reactions
a) CH3CH =CH CH3 +HBr
b) CH3CH2CH=CH2+H2O
c) CH3CCH+2HBr
d) CH3CH2CH3+O2
119. Complete the following reactions
a) Propene+Water
b) 2-Butene + Water
c) 2-Butene + HCl
d) 1-Pentene+HBr
e) Propene +Water
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