Question 1

Isomers always have the same empirical formula.

Accepted Answer

A) True 
 B)False

Question 2

A general formula for cycloalkanes is _____ .

Accepted Answer

A) C2H2n+2 
B) CnH2n 
C) CnH2n - 2 
D) CnH2n - 4 
A) C2H2n+2 
B) CnH2n 
C) CnH2n - 2 
D) CnH2n - 4

Question 3

What is the IUPAC name for the compound shown?

Accepted Answer

A) 1,2,5,6-tetramethylcycloheptane 
B) 1,2,4,5-tetramethylcycloheptane 
C) 1,3,4,6-tetramethylcycloheptane 
D) di(1,2-dimethyl)cycloheptane 
A) 1,2,5,6-tetramethylcycloheptane 
B) 1,2,4,5-tetramethylcycloheptane 
C) 1,3,4,6-tetramethylcycloheptane 
D) di(1,2-dimethyl)cycloheptane

Question 4

The boiling point for normal alkanes will increase as the number of carbons increases.

Accepted Answer

A) True 
 B)False

Question 5

Which of the following formulas does not represent an organic compound?

Accepted Answer

A) CH4 
B) CH3CH2NH2 
C) CH3CH3CH3 
D) All are organic compounds 
A) CH4 
B) CH3CH2NH2 
C) CH3CH3CH3 
D) All are organic compounds

Question 6

Carbon atom tends to form tetrahedral structures and carbon is the basis of organic compounds,so,all organic compounds tend to be tetrahedral in shape.

Accepted Answer

A) True 
 B)False

Question 7

Give the IUPAC name for the following chemical.

Accepted Answer

A) 3,6-diethyl-3-methylnonane 
B) 2,2,5,6-tetraethylhexane 
C) 2,2,5-triethyloctane 
D) 3-ethyl-3-methyl-6-propyldecane 
A) 3,6-diethyl-3-methylnonane 
B) 2,2,5,6-tetraethylhexane 
C) 2,2,5-triethyloctane 
D) 3-ethyl-3-methyl-6-propyldecane

Question 8

All of the members of the alkane series of hydrocarbons have the general formula _____ .

Accepted Answer

A) CnH2n 
B) CnHn 
C) CnH2n+2 
D) CnH2n - 2 
A) CnH2n 
B) CnHn 
C) CnH2n+2 
D) CnH2n - 2

Question 9

Which of the following is a structural isomer of the compound shown below?

Accepted Answer

A)    
B)    
C)    
D)    
A)    
B)    
C)    
D)

Question 10

Since all alkanes are saturated hydrocarbons,all of the carbon atoms are aligned in one continuous chain.

Accepted Answer

A) True 
 B)False

Question 11

Which of the following is the structural formula of 1-bromo-2,2-dimethylpropane?

Accepted Answer

A)    
B)    
C)    
D)    
A)    
B)    
C)    
D)

Question 12

Which of the following structural formulas represents an normal (unbranched)alkane?

Accepted Answer

A)    
B)    
C)    
D)    
A)    
B)    
C)    
D)

Question 13

When the following hydrocarbon reacts with an excess of oxygen gas,the balanced equation would contain how many moles of water?

Accepted Answer

A) 5 
B) 6 
C) 10 
D) 12 
A) 5 
B) 6 
C) 10 
D) 12

Question 14

cis-1,2-Dimethylcyclohexane and trans-1,2-dimethylcyclohexane are examples of what type of isomers?

Accepted Answer

A) structural isomers 
B) stereoisomers 
C) geometric isomers 
D) more than one response is correct 
A) structural isomers 
B) stereoisomers 
C) geometric isomers 
D) more than one response is correct

Question 15

The IUPAC name for the following compound is _____.

Accepted Answer

A) 2-ethylbutane 
B) 2-methylbutane 
C) 3-methylpentane 
D) 3-ethylbutane 
A) 2-ethylbutane 
B) 2-methylbutane 
C) 3-methylpentane 
D) 3-ethylbutane

Question 16

An alkane with 10 carbon atoms is a ____ at room temperature.

Accepted Answer

A) solid 
B) liquid 
C) gas 
D) can't tell 
A) solid 
B) liquid 
C) gas 
D) can't tell

Question 17

Three physical properties shown below beside different alkane series.Which of the series is(are)listed in the order of increase (lowest to highest)for the corresponding property?

Accepted Answer

A) Density: C4H10 5H12 8H18 
B) Melting Point: C8H18 5H12 4H10 
C) Boiling Point: C5H12 4H10 8H18 
D) All are correctly ranked. 
A) Density: C4H10 5H12 8H18 
B) Melting Point: C8H18 5H12 4H10 
C) Boiling Point: C5H12 4H10 8H18 
D) All are correctly ranked.

Question 18

What is the longest carbon chain for the compound shown?

Accepted Answer

A) 7 
B) 8 
C) 9 
D) 10 
A) 7 
B) 8 
C) 9 
D) 10

Question 19

The compound shown has the IUPAC name of _____.

Accepted Answer

A) 4-isopropyloctane 
B) 5-isopropyloctane 
C) 5-sec-butyloctane 
D) 4-propyloctane 
A) 4-isopropyloctane 
B) 5-isopropyloctane 
C) 5-sec-butyloctane 
D) 4-propyloctane

Question 20

How many structural isomers of C7H16 have five carbon atoms in the longest carbon chain?

Accepted Answer

A) 3 
B) 4 
C) 5 
D) 6 
A) 3 
B) 4 
C) 5 
D) 6

Exam 11: Organic Compounds: Alkanes

Isomers always have the same empirical formula.

A general formula for cycloalkanes is _____ .

What is the IUPAC name for the compound shown?

The boiling point for normal alkanes will increase as the number of carbons increases.

Which of the following formulas does not represent an organic compound?

Carbon atom tends to form tetrahedral structures and carbon is the basis of organic compounds,so,all organic compounds tend to be tetrahedral in shape.

Give the IUPAC name for the following chemical.

All of the members of the alkane series of hydrocarbons have the general formula _____ .

Which of the following is a structural isomer of the compound shown below?

Since all alkanes are saturated hydrocarbons,all of the carbon atoms are aligned in one continuous chain.

Which of the following is the structural formula of 1-bromo-2,2-dimethylpropane?

Which of the following structural formulas represents an normal (unbranched)alkane?

When the following hydrocarbon reacts with an excess of oxygen gas,the balanced equation would contain how many moles of water?

cis-1,2-Dimethylcyclohexane and trans-1,2-dimethylcyclohexane are examples of what type of isomers?

The IUPAC name for the following compound is _____.

An alkane with 10 carbon atoms is a ____ at room temperature.

Three physical properties shown below beside different alkane series.Which of the series is(are)listed in the order of increase (lowest to highest)for the corresponding property?

What is the longest carbon chain for the compound shown?

The compound shown has the IUPAC name of _____.

How many structural isomers of C7H16 have five carbon atoms in the longest carbon chain?

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How many structural isomers of C₇H₁₆ have five carbon atoms in the longest carbon chain?