TMA Quiz Questions

Dr. Aletan Uduak ( )


1 ______________, also known as acetylenes, constitute the homogenous series of open chain unsaturated hydrocarbons that contain one or more carbon-carbon triple bond.

A. Alkynes  
B. Alkenes
C. Benzene
D. Alkanes

2 In the __________ alkynes, the triple bond lies at the end of the carbon chain.

A. Internal
B. external
C. terminal  
D. interim

3 Reactions that lead to the attachment of an alkyl group to a molecular fragment are called ____________.

A. dealkylation
B. esterification
C. carboxylation
D. alkylation  

4 1-hexyne can itself be converted into an alkynide anion, and can be alkylated a second time to yield an __________ alkyne.

A. interim
B. internal  
C. terminal
D. external

5 Addition of ethyne to sodamide in ether yields ammonia and _____________.

A. potassium ethynide
B. sodium ethynide.  
C. ethynide
D. None of the above

6 Aromatic compounds containing heteroatoms such as O, N or S in the aromatic ring are called ____________ compounds.

A. Homocyclic
B. Monocyclic
C. Unsaturated
D. Heterocyclic  

7 One of these statements is true

A. The bond length for the F-F bond is 140
B. bond length decreases with the decrease in multiplicity of the bond.
C. Bond dissociation energy is another term for bond energy
D. bond lengths increase with the increasing size of the bonded atoms,  

8 ______________are the compounds having hydroxyl (-OH) group attached to the alkyl chain.

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A. Esters
B. Alcohols  
C. Ethers
D. Alkynes

9 _______________ are saturated aliphatic hydrocarbons.

A. Alkanes  
B. Alkenes
C. Alkynes
C. Benzene

10 In ____________ process, finely powdered coal is hydrogenated in presence of catalysts, such as tin and lead to give a mixture of liquidhydrocarbons.

A. Fischer-Tropsch
B. Diels-Alder
C. Bergius  
D. None of the above

11 The sharing of electrons to form a covalent bond leads to an increase in electron density in between the _____________________.

A. Atom
B. Electron
C. Nuclei  
D. Orbital

12 The amount of energy required to break a particular bond is called its bond _____________.

A. Dissociation energy  
B. Association energy
C. Bond energy
D. Kinetic energy

13 There are two more parameters associated with a covalent bond which determine the shape of a molecule and are known as ____________________.

A. Bond energy,Bond width
B. Bond diameter,Bond radius
C. Bond strenght,Bond circumference
D. Bond length,Bond angle  

14 ____________ can be defined as the average distance between the nuclei of the atoms which are covalently bound together.

A. Bond angle
B. Bond length  
C. Bond strenght
D. Bond width

15 The _____________ of a compound is its Lewis structure, which shows how various atoms are connected to each other.

A. Iupac nomenchlature
B. Structural formula  
C. Isomeric structure
D. Bond hybridization

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16 All these are methods of preparation of alkenes EXCEPT _________ reaction method

A. Retro Diels-Alder
B. Dehydration of alcohols
C. Wittig
D. Cannizaro  

17 Formic acid is now known as

A. Oxalic acid
B. Methanoic acid  
C. Ethanoic acid
D. Propenoic acid

18 The addition of ozone to an alkyne produces _________.

A. Ozonide  
B. ozonede
C. Ozonade
D. None of the above

19 The reaction between an alkyl halide and sodium metal to form an alkane is called _______ reaction.

A. Wittig
B. Diels-Alder
C. Kolbe
D. Wurtz  

20 A benzene ring with a methyl group at position one and nitro group at position three is _________

A. p nitrotoluene  
B. p nitroxylen
C. o nitrobenzene
D. o nitroaniline


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