Question 1

When alcohol is dissolved in water which is the solute?
A) the alcohol
B) the water
C) the compound present in larger amount
D) the compound present in smaller amount

Accepted Answer

D

Question 2

Which of the following cannot serve as a solute in a solution?
A) a gas
B) a liquid
C) a solid
D) None, all can serve as solutes.

Accepted Answer

All states of matter (gas, liquid, solid) can serve as solutes in a solution.

Question 3

In a solution of a solid in a liquid, the solid is called which of the following?
A) concentrate
B) dissolvate
C) solute
D) solvent

Accepted Answer

In a solution of a solid in a liquid, the solid material is called the solute, which is the component that is being dissolved. The liquid material is called the solvent, which is the substance that dissolves the solute. The concentrate refers to a solution that has a high amount of solute relative to the solvent, while dissolvate is not a commonly used term in describing solutions.

Question 4

When a certain clear red-brown liquid passes through a filtering apparatus no material is collected on the filter. What can be said about this liquid?
A) It is an element.
B) It is a compound.
C) It is a solution.
D) We cannot determine if it is an element, a compound or a solution.

Accepted Answer

The answer of When a certain clear red-brown liquid passes...

Question 5

A chemist has a sample which is known to be a solution. Which of the following might be used to separate the components of the solution?
A) chromatography
B) distillation
C) either a or b
D) neither a nor b

Accepted Answer

Either chromatography or distillation can be used to separate the components of a solution. Chromatography works by separating the components based on their different affinities for the stationary and mobile phases, while distillation separates components based on differences in their boiling points.

Question 6

Rainwater is naturally slightly acidic. Which gas causes this? A) N₂ B) O₂ C) CO₂ D) SO₂

Accepted Answer

Carbon dioxide (CO2) dissolves in rainwater to form carbonic acid, making it slightly acidic.

Question 7

A chemist has a sample which is known to be a solution. Which of the following might be used to separate the components of the solution?
A) distillation
B) filtration
C) either a or b
D) neither a nor b

Accepted Answer

Distillation can be used to separate components of a solution based on differences in boiling points. Filtration is not suitable for separating solutions as it is used for separating solids from liquids.

Question 8

A student is preparing a sugar water solution to make rock candy. When the student continues to add sugar to the solution no additional sugar dissolves. Which kind of solution does the student have?
A) a saturated solution
B) a supersaturated solution
C) an unsaturated solution
D) We cannot tell.

Accepted Answer

If the student continues to add sugar but no more dissolves, the solution must be saturated, meaning it has reached its maximum solubility at that temperature.

Question 9

The term solution is synonymous with which of the following?
A) compound
B) element
C) heterogeneous mixture
D) homogeneous mixture

Accepted Answer

A solution is a homogeneous mixture where the solute (part that is dissolved) is evenly distributed throughout the solvent (part that does the dissolving). Compounds and elements are not synonymous with solutions, and a heterogeneous mixture is not evenly distributed.

Question 10

Which of the following is a solution?
A) blood plasma
B) cigarette smoke
C) milk
D) none of these

Accepted Answer

The answer of Which of the following is a solution?
A)...

Question 11

Which of the following is intermediate between homogenous and heterogeneous mixtures?
A) alloys
B) colloidal dispersions
C) plastics
D) polymers

Accepted Answer

Colloidal dispersions are intermediate between homogenous and heterogeneous mixtures. They have particles that are too small to see with the naked eye but too large to behave as individual molecules, resulting in a cloudy or opaque appearance. Alloys, plastics, and polymers can be either homogenous or heterogeneous mixtures depending on their composition and preparation.

Question 12

Which of the following combinations will always result in a solution?
A) gas + gas
B) liquid + liquid
C) solid + solid
D) none of these

Accepted Answer

The answer of Which of the following combinations will always...

Question 13

When a certain clear red-brown liquid is distilled we recover a clear liquid and a red-brown solid? What can be said about the red-brown liquid?
A) It is an element.
B) It is a compound.
C) It is a solution.
D) We cannot determine if it is an element, a compound or a solution.

Accepted Answer

The red-brown liquid is a solution because distillation separates it into a clear liquid and a red-brown solid, indicating it was a mixture of at least two different substances.

Question 14

In a solution of a gas in a liquid, the gas is called which of the following?
A) concentrate
B) dissolvate
C) solute
D) solvent

Accepted Answer

In a solution of a gas in a liquid, the gas is considered the solute, as it is being dissolved into the liquid solvent.

Question 15

Which of the following cannot serve as a solvent in a solution?
A) a gas
B) a liquid
C) a solid
D) None, all can serve as solvents.

Accepted Answer

All states of matter (gas, liquid, and solid) can serve as solvents depending on the conditions and the solute involved.

Question 16

A chemist has a sample which is known to be a solution. Which of the following might be used to separate the components of the solution?
A) chromatography
B) filtration
C) either a or b
D) neither a nor b

Accepted Answer

Chromatography can be used to separate the components of a solution based on their different affinities for a stationary phase and a mobile phase. Filtration is not suitable for separating solutions as it is typically used to separate solids from liquids.

Question 17

The term alloy is applied to which of the following solvent/solute combinations?
A) liquid/solid
B) liquid/liquid
C) solid/solid
D) none of these

Accepted Answer

Alloys are homogeneous mixtures of two or more metals (solid/solid) or a metal and a non-metal. Therefore, the correct choice is C (solid/solid).

Question 18

A beaker of salt water has some solid salt at the bottom? What type of solution is in the beaker?
A) a saturated solution
B) a supersaturated solution
C) an unsaturated solution
D) We cannot tell.

Accepted Answer

The presence of solid salt at the bottom of the beaker indicates that the solution is saturated, meaning it has reached the maximum amount of solute (salt) that can dissolve in the solvent (water) under the given conditions.

Question 19

In a solution of a solid in a liquid, the liquid is called which of the following?
A) concentrate
B) dissolver
C) solute
D) solvent

Accepted Answer

In a solution of a solid in a liquid, the liquid is called the solvent. The solute is the solid that is being dissolved in the solvent. Therefore, choice D is the correct answer. Choices A, B, and C are incorrect.

Question 20

A student is preparing a sugar water solution to make rock candy. When the student continues to add sugar to the solution the sugar dissolves. Which kind of solution does the student have?
A) a saturated solution
B) a supersaturated solution
C) an unsaturated solution
D) We cannot tell.

Accepted Answer

The fact that the sugar continues to dissolve suggests that the solution is not yet saturated, so options A and B can be ruled out. Since the solution is able to dissolve more sugar, it is unsaturated. Therefore, the correct answer is option C.

Quiz 6: Solutions and Colloids

When alcohol is dissolved in water which is the solute?

Which of the following cannot serve as a solute in a solution?

In a solution of a solid in a liquid, the solid is called which of the following?

When a certain clear red-brown liquid passes through a filtering apparatus no material is collected on the filter. What can be said about this liquid?

A chemist has a sample which is known to be a solution. Which of the following might be used to separate the components of the solution?

Rainwater is naturally slightly acidic. Which gas causes this?

A chemist has a sample which is known to be a solution. Which of the following might be used to separate the components of the solution?

A student is preparing a sugar water solution to make rock candy. When the student continues to add sugar to the solution no additional sugar dissolves. Which kind of solution does the student have?

The term solution is synonymous with which of the following?

Which of the following is a solution?

Which of the following is intermediate between homogenous and heterogeneous mixtures?

Which of the following combinations will always result in a solution?

When a certain clear red-brown liquid is distilled we recover a clear liquid and a red-brown solid? What can be said about the red-brown liquid?

In a solution of a gas in a liquid, the gas is called which of the following?

Which of the following cannot serve as a solvent in a solution?

A chemist has a sample which is known to be a solution. Which of the following might be used to separate the components of the solution?

The term alloy is applied to which of the following solvent/solute combinations?

A beaker of salt water has some solid salt at the bottom? What type of solution is in the beaker?

In a solution of a solid in a liquid, the liquid is called which of the following?

A student is preparing a sugar water solution to make rock candy. When the student continues to add sugar to the solution the sugar dissolves. Which kind of solution does the student have?