In the case of a covalent non-polar bond, the difference in electronegativity between two bonded atoms is ___.
0.0-0.5
In the case of a covalent, polar bond, the difference in electronegativity between two bonded atoms is ___.
0.5-1.67
If the electronegativity difference between two bonded atoms is higher than ___, the bond is called an ionic bond.
1.67
The higher the electronegativity difference between two bonded atoms, the more ___ is the covalent bond.
Polar
The state of hybridization of carbon in methane is ___ whereas it is ___ in ethylene.
- sp3 (methane)
- sp2 (ethylene)
Carbon is ___ hybridized in ethane whereas ___ in acetylene.
- sp3 (ethane)
- sp (acetylene)
How many sigma bond and pi bond are present in the ethylene (C2H4) molecule?
- 5 sigma
- 1 pi
How many sigma bond and pi bond are present in the acetylene (C2H2) molecule?
- 3 sigma
- 2 pi
In benzene, the carbons are ___ hybridized.
sp2
As the number of nearly equivalent resonance contributors ___, the resonance energy ___.
- increases
- increases
CH3-CH2-CH2-CH3
The compound is the structure of ___.
Butane
Write the structure of n-hexane and Cyclohexane.
Write the structure of Hex-3-yne.
tButyl iodide is a ___ alkyl halide.
tertiary
Isopropyl fluoride is a ___ alkyl halide.
secondary
Ethyl bromide is a ___ alkyl halide.
primary
The IUPAC name of methyl chloride is ___.
chloromethane
The IUPAC name of Cyclobutyl bromide is ___.
bromocyclobutane
The IUPAC name of Cyclohexyl fluoride is ___.
fluorocyclohexane
Write the structure of Iodobenzene.
Glycerol is an example of ___ alcohol.
trihydric
Phenol is also known as ___ acid.
carbolic
Neopentyl acohol
Cyclobutanol
Write the name and structure of two symmetrical and non-symmetrical ethers.
- Symmetrical: dimethyl ether (metoxymethane) and diethyl ether (etoxyethane)
- Nonsymmetrical: ethyl-methyl ether (methoxyethane) and methyl-phenyl ether (methoxybenzene)
The common name of Methoxymethane is
Dimethyl ether
The IUPAC name of anisole is ___.
methoxybenzene
Write the structure of TBME (methyl tert-butyl ether).
Triethylamine is widely used as an organic ___ in the laboratory.
base
Aniline
p-Anisidine
Pyrrole
Pyridine
Quinoline
Imidazole
Indole
Pyrimidine
Write the structures of two aliphatic cyclic amines.
Pyridine and quinoline
In carbonyl compounds, the carbonyl carbon is ___ hybridized.
sp2
Hexanol
Hexanal
Write the structure of y-hydroxyvaleraldehyde.
The carbonyl carbon in acetic acid is ___ hybridized.
sp2
The carbonyl carbon in acetic acid contains ___% s-character, whereas the carbon in methanol contains ___% s-character.
- 33% (acetic acid)
- 25% (methanol)
The common name of ethanoic acid is ___.
acetic acid
2-bromobutanoic acid
Valeric acid
The reverse reaction of esterification is known as ester ___.
hydrolysis
Write the name of an ester that is widely used as a solvent in organic chemistry.
Tetrahydrofuran
Ortho, meta, para-xylene
Beta-lactam is a four-membered ___ amide, whereas ___ lactam is ___ membered cyclic ___.
- cylic
- gamma y
- five
- amide
The general formula of alkanes is ___.
CnH2n+2
The name of the following compound is
Pyrene
To achieve noble gas configuration, hydrogen requires ___ whereas chlorine requires ___ in the outermost shell.
- duet
- octet
The ___ the number of relatively stable resonance contributors, the ___ the resonance energy.
- higher
- higher
The other name of Methylbenzene is ___.
Toluene
In pericondensed polyaromatic hydrocarbon, one or more carbon atoms must be a common number of ___ benzene rings.
three
H2NCH2CH2CH2CO2H
The name of the compound is ___.
4-aminobutanoic acid
Benzoyl chloride is an example of
aromatic acid chloride
Acetyl chloride is an example of
aliphatic acid chloride
Acetic anhydride is an example of
aliphatic acid anhydride
Phtalic anhydride is an example of
heterocyclic acid anhydride
Formamide is an example of
aliphatic amide
Benzamide is an example of
aromatic amide