Welcome to the Phenols Physical Properties MDCAT MCQs with Answers. In this post, we have shared Phenols Physical Properties Multiple Choice Questions and Answers for PMC MDCAT 2024. Each question in MDCAT Chemistry offers a chance to enhance your knowledge regarding Phenols Physical Properties MCQs in this MDCAT Online Test.
Phenol has a higher boiling point compared to an alcohol of similar molecular weight because:
a) Phenol forms hydrogen bonds more strongly than alcohols
b) Phenol is a smaller molecule
c) Phenol is less polar than alcohols
d) Phenol has a lower molecular weight
Phenol is more soluble in water compared to benzene because:
a) Phenol forms hydrogen bonds with water
b) Benzene is more polar
c) Phenol has a higher molecular weight
d) Benzene can form hydrogen bonds
Which of the following statements about the melting point of phenol is correct?
a) Phenol has a lower melting point than water
b) Phenol has a higher melting point than benzene
c) Phenol has a melting point similar to that of alcohols
d) Phenol has a melting point similar to that of alkanes
The presence of which group in phenol affects its solubility in organic solvents?
a) Hydroxyl group
b) Carbonyl group
c) Methyl group
d) Amino group
The color of phenol is due to:
a) Its high molecular weight
b) Its conjugated double bonds
c) Its low boiling point
d) Its interaction with sunlight
Phenol has a characteristic odor which is described as:
a) Sweet
b) Fruity
c) Smoky
d) Medicinal
The solubility of phenol in aqueous sodium hydroxide is due to:
a) Formation of phenoxide ion
b) Formation of a complex with sodium
c) Increase in molecular weight
d) Reduction in molecular size
Phenol is less dense than:
a) Water
b) Ethanol
c) Chloroform
d) Benzene
The vapor pressure of phenol is lower than that of benzene because:
a) Phenol has stronger intermolecular forces
b) Phenol is less volatile
c) Phenol has a higher molecular weight
d) Phenol is less dense
The refractive index of phenol is:
a) Higher than that of water
b) Lower than that of water
c) Similar to that of benzene
d) Higher than that of benzene
Phenol has a higher boiling point than alcohols because:
a) Phenol forms stronger hydrogen bonds
b) Phenol has more carbon atoms
c) Phenol is less polar
d) Phenol has a larger molecular size
Which of the following is a true statement about the boiling point of phenol?
a) It is lower than that of water
b) It is lower than that of methane
c) It is higher than that of alcohols
d) It is similar to that of ethers
The melting point of phenol is influenced by:
a) The type of substituents on the benzene ring
b) The molecular weight of phenol
c) The presence of functional groups outside the ring
d) The presence of nonpolar groups
Which physical property of phenol makes it different from other aromatic compounds?
a) Its ability to form hydrogen bonds
b) Its high density
c) Its low refractive index
d) Its low solubility in water
Phenol’s ability to form a white crystalline solid with:
a) Sodium hydroxide
b) Sodium bicarbonate
c) Sodium chloride
d) Sodium sulfate
The solubility of phenol in non-polar solvents is due to:
a) Its hydrogen bonding capability
b) Its low polarity
c) Its ability to form salts
d) Its high boiling point
Phenol can be distinguished from alcohol by:
a) Its higher boiling point
b) Its characteristic smell
c) Its solubility in sodium bicarbonate solution
d) Its color in sunlight
The colorless nature of phenol in dilute solutions is due to:
a) Its weak acidic nature
b) Its low molecular weight
c) The absence of conjugated systems
d) Its ability to dissolve in water
Phenol has a characteristic sweet smell in:
a) Pure form
b) Dilute aqueous solution
c) Solid form
d) Crystalline form
The boiling point of phenol is higher than that of:
a) Methanol
b) Ethanol
c) Benzene
d) Toluene
The melting point of phenol is primarily influenced by:
a) Its hydrogen bonding with itself
b) Its solubility in alcohols
c) Its low molecular weight
d) Its non-polar character
The main factor affecting the solubility of phenol in water is:
a) Its hydroxyl group
b) Its benzene ring
c) Its molecular weight
d) Its refractive index
The density of phenol is higher than that of:
a) Water
b) Benzene
c) Methanol
d) Ethanol
Which of the following affects the solubility of phenol in non-aqueous solvents?
a) The hydrogen bonding capacity
b) The presence of hydroxyl groups
c) The molecular weight
d) The crystalline structure
The odor of phenol can be described as:
a) Fruity
b) Medicinal
c) Chemical
d) Earthy
Phenol’s boiling point increases with:
a) Increasing molecular weight
b) Decreasing number of hydroxyl groups
c) Decreasing intermolecular forces
d) Increasing solubility in water
The physical state of phenol at room temperature is:
a) Liquid
b) Gas
c) Solid
d) Gas
The solubility of phenol in organic solvents like ether is:
a) High
b) Low
c) Moderate
d) Very low
The solubility of phenol in organic solvents is due to:
a) Its ability to form hydrogen bonds
b) Its non-polar nature
c) Its high molecular weight
d) Its crystalline structure
The main reason for phenol’s high boiling point compared to alkanes is:
a) Strong hydrogen bonding
b) Low molecular weight
c) Strong van der Waals forces
d) High molecular weight
The color of phenol in solid form is generally:
a) White
b) Yellow
c) Red
d) Blue
Phenol has a higher solubility in water compared to:
a) Benzene
b) Toluene
c) Methanol
d) Ethanol
Phenol’s characteristic odor becomes more noticeable in:
a) High concentrations
b) Low concentrations
c) Solid form
d) Dilute solution
The solubility of phenol in water is attributed to:
a) Hydrogen bonding
b) Van der Waals forces
c) Ionic bonding
d) Covalent bonding
Which of the following solvents is phenol least soluble in?
a) Water
b) Alcohol
c) Ether
d) Benzene
The density of phenol compared to water is:
a) Higher
b) Lower
c) Equal
d) Varies
The melting point of phenol is influenced primarily by:
a) Intermolecular hydrogen bonds
b) Its molecular size
c) Its solubility
d) Its vapor pressure
Phenol’s boiling point is higher than that of:
a) Ether
b) Propane
c) Butane
d) Methane
The physical state of phenol at room temperature is:
a) Solid
b) Liquid
c) Gas
d) Crystalline
Phenol’s characteristic smell is less noticeable in:
a) Dilute solutions
b) Solid form
c) Pure form
d) High concentrations
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