CHM102: Introductory Organic Chemistry TMA1

CHM102: Introductory Organic Chemistry TMA1

Instructions: Answer All .
After Submission, you will not be able to answer these questions

Question 1 : Reactions that lead to the attachment of an alkyl group to a molecular fragment are called ____________.
esterification
carboxylation
alkylation
dealkylation

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Question 2 : ______________, also known as acetylenes, constitute the homogenous series of open chain unsaturated hydrocarbons that contain one or more carbon-carbon triple bond.
Benzene
Alkanes
Alkynes
Alkenes

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Question 3 : All these are methods of preparation of alkenes EXCEPT _________ reaction method
Cannizaro
Dehydration of alcohols
Wittig
Retro Diels-Alder

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Question 4 : In the __________ alkynes, the triple bond lies at the end of the carbon chain.
external
terminal
Internal
interim

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Question 5 : There are two more parameters associated with a covalent bond which determine the shape of a molecule and are known as ____________________.
Bond length,Bond angle
Bond strenght,Bond circumference
Bond energy,Bond width
Bond diameter,Bond radius

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Question 6 : Addition of ethyne to sodamide in ether yields ammonia and _____________.
ethynide
potassium ethynide
sodium ethynide.
None of the above

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Question 7 : _______________ are saturated aliphatic hydrocarbons.
Alkanes
Benzene
Alkynes
Alkenes

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Question 8 : The reaction between an alkyl halide and sodium metal to form an alkane is called _______ reaction.
Kolbe
Wurtz
Diels-Alder
Wittig

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Question 9 : The sharing of electrons to form a covalent bond leads to an increase in electron density in between the _____________________.
Nuclei
Atom
Electron
Orbital

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Question 10 : One of these statements is true
The bond length for the F-F bond is 140
bond length decreases with the decrease in multiplicity of the bond.
bond lengths increase with the increasing size of the bonded atoms,
Bond dissociation energy is another term for bond energy

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Question 11 : In ____________ process, finely powdered coal is hydrogenated in presence of catalysts, such as tin and lead to give a mixture of liquidhydrocarbons.
Bergius
Diels-Alder
Fischer-Tropsch
None of the above

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Question 12 : ____________ can be defined as the average distance between the nuclei of the atoms which are covalently bound together.
Bond width
Bond strenght
Bond length
Bond angle

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Question 13 : 1-hexyne can itself be converted into an alkynide anion, and can be alkylated a second time to yield an __________ alkyne.
interim
terminal
internal
external

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Question 14 : The addition of ozone to an alkyne produces _________.
Ozonide
Ozonade
None of the above
ozonede

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Question 15 : A benzene ring with a methyl group at position one and nitro group at position three is _________
p nitrotoluene
o nitroaniline
o nitrobenzene
p nitroxylen

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Question 16 : Formic acid is now known as
Methanoic acid
Oxalic acid
Ethanoic acid
Propenoic acid

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Question 17 : ______________are the compounds having hydroxyl (-OH) group attached to the alkyl chain.
Alcohols
Alkynes
Ethers
Esters

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Question 18 : Aromatic compounds containing heteroatoms such as O, N or S in the aromatic ring are called ____________ compounds.
Unsaturated
Monocyclic
Homocyclic
Heterocyclic

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Question 19 : The _____________ of a compound is its Lewis structure, which shows how various atoms are connected to each other.
Bond hybridization
Isomeric structure
Iupac nomenchlature
Structural formula

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Question 20 : The amount of energy required to break a particular bond is called its bond _____________.
Dissociation energy
Bond energy
Kinetic energy
Association energy