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Phenols Physical Properties MDCAT MCQs with Answers

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

Answer
a

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

Answer
a

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

Answer
b

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

Answer
a

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

Answer
b

Phenol has a characteristic odor which is described as:
a) Sweet
b) Fruity
c) Smoky
d) Medicinal

Answer
d

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

Answer
a

Phenol is less dense than:
a) Water
b) Ethanol
c) Chloroform
d) Benzene

Answer
a

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

Answer
a

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

Answer
a

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

Answer
a

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

Answer
c

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

Answer
a

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

Answer
a

Phenol’s ability to form a white crystalline solid with:
a) Sodium hydroxide
b) Sodium bicarbonate
c) Sodium chloride
d) Sodium sulfate

Answer
a

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

Answer
b

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

Answer
c

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

Answer
c

Phenol has a characteristic sweet smell in:
a) Pure form
b) Dilute aqueous solution
c) Solid form
d) Crystalline form

Answer
a

The boiling point of phenol is higher than that of:
a) Methanol
b) Ethanol
c) Benzene
d) Toluene

Answer
c

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

Answer
a

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

Answer
a

The density of phenol is higher than that of:
a) Water
b) Benzene
c) Methanol
d) Ethanol

Answer
b

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

Answer
a

The odor of phenol can be described as:
a) Fruity
b) Medicinal
c) Chemical
d) Earthy

Answer
b

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

Answer
a

The physical state of phenol at room temperature is:
a) Liquid
b) Gas
c) Solid
d) Gas

Answer
a

The solubility of phenol in organic solvents like ether is:
a) High
b) Low
c) Moderate
d) Very low

Answer
a

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

Answer
a

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

Answer
a

The color of phenol in solid form is generally:
a) White
b) Yellow
c) Red
d) Blue

Answer
a

Phenol has a higher solubility in water compared to:
a) Benzene
b) Toluene
c) Methanol
d) Ethanol

Answer
a

Phenol’s characteristic odor becomes more noticeable in:
a) High concentrations
b) Low concentrations
c) Solid form
d) Dilute solution

Answer
a

The solubility of phenol in water is attributed to:
a) Hydrogen bonding
b) Van der Waals forces
c) Ionic bonding
d) Covalent bonding

Answer
a

Which of the following solvents is phenol least soluble in?
a) Water
b) Alcohol
c) Ether
d) Benzene

Answer
d

The density of phenol compared to water is:
a) Higher
b) Lower
c) Equal
d) Varies

Answer
a

The melting point of phenol is influenced primarily by:
a) Intermolecular hydrogen bonds
b) Its molecular size
c) Its solubility
d) Its vapor pressure

Answer
a

Phenol’s boiling point is higher than that of:
a) Ether
b) Propane
c) Butane
d) Methane

Answer
a

The physical state of phenol at room temperature is:
a) Solid
b) Liquid
c) Gas
d) Crystalline

Answer
b

Phenol’s characteristic smell is less noticeable in:
a) Dilute solutions
b) Solid form
c) Pure form
d) High concentrations

Answer
a

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