CHM102: Introductory Organic Chemistry TMA3

CHM102: Introductory Organic Chemistry TMA3

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

Question 1 : The direct decarboxylation of a carboxylic acid can be carried out by heating it with an organic base, such as pyridine using___________ as catalyst
platinium
copperchromite
nickel
palladium

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Question 2 : The double bond in alkene is converted into ___________by means of peracids.
ethyne
epoxide
ethoxide
ether

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Question 3 : Alkynes react with chlorine and bromine to yield _____________.
dihydroalkanes
tetrahaloalkanes
haloalkanes
trihaloalkanes

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Question 4 : What is the IUPAC name for Acetic Acid
Ethanedioic acid
Hexanedioic acid
Ethanoic acid
Methanoic acid

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Question 5 : Alkenes are readily hydroxylated (addition of hydroxyl groups) to form a dihydroxy compound (diol) known as ____________.
glycols
ketone
enols
phenol

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Question 6 : The _____________ provide a backbone to which various functional groups may be attached to yield an enormous variety of organic compounds.
Hydrocarbons
Structural formula
Isomers
Bonds

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Question 7 : What is the composition of the hydrocarbons found in Kerosene got from the fractional distillation of petroleum?
18-20 carbon atoms
Between 6-8 carbon atoms
Between 12-16 carbon atoms
20-22 carbon atoms

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Question 8 : The molecular rearrangement of one compound into another compound or into more than one compound is called ____________.
Isomerisation
Nitration
Esterification
halogenation

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Question 9 : Hydrogenation of an alkene can be carried out by using nickel catalyst but relatively higher temperature and pressure are required for this reaction,this reaction is called ________reaction.
Catalytic
Sabatier Senderen’s
Fischer-Tropsch
Bergius

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Question 10 : __________ involves elimination of the halogen atom together with a hydrogen atom from an adjacent carbon atom.
Hydrogenation
Halogenation
Hydrohalogenation
Dehydrohalogenation

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Question 11 : Alkanes can also be prepared by the ____________ of alkyl halides
reduction
oxidation
carboxylation
esterification

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Question 12 : Wittig reaction is applicable to __________.
Carbonyl compounds
Alcohols
Alkyl halides
Benzene

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Question 13 : In the absence of a poison, catalytic hydrogenation of an alkyne gives the __________.
alkane
haloalkane
alkene
benzene

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Question 14 : Hydroboration can be described as __________.
Anti markownikoffs addition
Markownikoffs addition
Hund's addition
Sayzeff addition

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Question 15 : _____________are the compounds that have identical molecular formulas but differ in the ways in which the atoms are bonded to each other.
Alkanes
Alkenes
Monomers
Isomers

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Question 16 : Organic compounds are separated into groups called homologous series. Which one of the following is not a property of a homologous series?
They have similar physical properties.
They have similar chemical properties.
All members have the same general formula.
Successive members differ by CH2.

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Question 17 : What is the main component of natural gas?
propane
ethane
methane
ethene

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Question 18 : The saturated hydrocarbons contain the carbon and hydrogen atoms linked to each other by single bonds and are called ______________.
Alkynes
Aromatic
Alkanes
Alkenes

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Question 19 : Hydrocarbons which contains at least ______ benzene ring in their structure is called an aromatic hydrocarbon
1
2
4
3

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Question 20 : In the ___________hydrocarbons, the carbon atoms are linked to each other to form chains (straight of branched).
Alicyclic
Aromatic
Aliphatic
Unsaturated

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