CHM102: Introductory Organic Chemistry TMA2

CHM102: Introductory Organic Chemistry TMA2

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

Question 1 : The decarboxylation of carboxylic acid yields which of the following compound________.
alkylhalides
alkanes
alkynes
alkenes

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Question 2 : An alkyl group that has three carbon atoms bonded to the carbon atom taken as point of attachment is called__________
Primary
Quartenary
Secondary
Tertiary

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Question 3 : Give the IUPAC nomenchlature for this structure $$C{H}_3-C{H}_2-CH\left(C{H}_3\right)-CH\left(C{H}_2\right)\left(C{H}_3\right)-C{H}_2-C{H}_2-C{H}_3$$

_____________________.
4-ethyl-3-methyloctane
3-ethyl-5-octane
4-ethyl-6-octane
4-ethyl-5-methyl octane

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Question 4 : In IUPAC nomenchlature of alkenes, the _______ group is given the lowest possible number.
methyl
parent
functional
leaving

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Question 5 : When 1,5- dihalogen derivatives of alkanes are treated with sodium or zinc , the product formed is __________.
alkyl halide
cycloalkane
alkene
alkyne

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Question 6 : All these are methods of preparation of alkenes EXCEPT _________ reaction method
Cannizaro
Retro Diels-Alder
Wittig
Dehydration of alcohols

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Question 7 : The hydrohalogenation of alkynes is in accordance with ________.
Anti markownikoffs rule
Sayzeff rule
Markownikoffs rule
Hund's rule

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Question 8 : _________ is the functional group in this compound $$C{H}_3─CH=CHOH$$
alkyne
alkene
aromatic
imine

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Question 9 : The saturated hydrocarbons contain the carbon and hydrogen atoms linked to each other by single bonds and are called ______________.
Alkanes
Alkynes
Alkenes
Aromatic

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Question 10 : A benzene ring with $$OC{H}_3$$ at position one, F at position two and $$C{H}_{3}C{H}_2$$ at position four is --------------.
2-fluoro-4-ethylanisole
4-ethyl-2-fluorotoluene
2-fluoro-4-ethyl toluene
4-ethyl-2-fluoroanisole

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Question 11 : In the ___________hydrocarbons, the carbon atoms are linked to each other to form chains (straight of branched).
Unsaturated
Aromatic
Aliphatic
Alicyclic

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Question 12 : The _____________ provide a backbone to which various functional groups may be attached to yield an enormous variety of organic compounds.
Hydrocarbons
Structural formula
Bonds
Isomers

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Question 13 : What is the IUPAC name of tert-butyl?
1-methylpropyl
butyl
2-methylpropyl
1,1-dimethylethyl

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Question 14 : ____________ is how a sigma (δ) bond is formed.
edge-on overlap of pure s and p orbitals
sideways overlap of p orbitals
sideways overlap of s and p orbitals
edge-on overlap of p orbitals

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Question 15 : Alkenes are readily hydroxylated (addition of hydroxyl groups) to form a dihydroxy compound (diol) known as ____________.
enols
phenol
glycols
ketone

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Question 16 : Rapid decolourization of bromine solution serves as a test for the presence of the _____ in a compound.
C≡C
C=O
C=C
C-C

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Question 17 : _____________are the compounds that have identical molecular formulas but differ in the ways in which the atoms are bonded to each other.
Alkenes
Monomers
Alkanes
Isomers

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Question 18 : The amount of energy required to break a particular bond is called ______________ .
potential energy
bond energy
kinetic energy
bond dissociation energy

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Question 19 : The IUPAC name for the structure $$C{H}_3-CH\left(C{H}_3\right)-C\equiv C-C{H}_3$$ is _____________________.
3-methylpent-4-yne
4-methylpent-2-yne
2-methylpent-4-yne
2-methylpent-3-yne

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Question 20 : The catalyst required for the hydrogenation of unsaturated hydrocarbons at moderate temperature and pressure is__________
Nickel
Palladium
Vanadium (v) Oxide
Iron

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