Tag: introduction to solutions

Quizzes (0) Questions (47)

Questions Related to introduction to solutions

Multiple choice chemistry mix and separate different types of solutions various mixtures introduction to solutions

On dissolving sugar in water at room temperature solution feels cool to touch. Under which of the following cases dissolution of sugar will be most rapid?

  1. Sugar crystals in cold water

  2. Sugar crystals in hot water

  3. Powdered sugar in cold water

  4. Powdered sugar in hot water
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Powdered sugar dissolves faster in hot water than it does in cold water because hot water has more energy than cold water. When water is heated, the molecules gain energy and, thus, move faster. As they move faster, they come into contact with the sugar more often, causing it to dissolve faster.

Multiple choice chemistry mix and separate different types of solutions various mixtures introduction to solutions

An example of solid in non-aqueous solvent is :

  1. sugar in Ethanol

  2. blood

  3. starch

  4. sugar sol
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The solutions obtained by dissolving a solute in any solvent other than water are called non aqueous solutions (non acqueous means without water). For example, if a solute is dissolved in any solvent such as benzene, alcohol, ether, carbon, disulphide, carbon tetrachloride, acetone, etc., the solution obtained is called a non aqueous solution.
) Non Aqueous soln: Ethanol + glucose
Solid in non aqueous: Sugar in Ethanol
2) blood, starch, ink : Collidal Soln.
sugar sol., salt sol : true soln.

Multiple choice chemistry mix and separate different types of solutions various mixtures introduction to solutions

Carbon tetrachloride and benzene are:

  1. immiscible in water

  2. miscible in water

  3. both A and B

  4. none of these
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Carbon tetrachloride is nonpolar and will not mix with water. Benzene is also non-polar and won't mix with water at all. 


Thus, both carbon tetrachloride and benzene are Immiscible liquid.  

So, option A is correct.

Multiple choice chemistry mix and separate different types of solutions various mixtures introduction to solutions

Which describes a species in which the solvent is water?

  1. Solute

  2. Solvent

  3. Solubility

  4. Aqueous solution

  5. Solvation
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

An aqueous solution is a solution in which the solvent is water. It is usually shown in chemical equations by appending (aq) to the relevant chemical formula. For example, a solution of table salt, or sodium chloride (NaCl), in water would be represented as Na+(aq) + Cl-(aq).

Multiple choice chemistry mix and separate different types of solutions various mixtures introduction to solutions

Which is the interaction between the solute and the solvent molecules?

  1. Solute

  2. Solvent

  3. Solubility

  4. Aqueous solution

  5. Solvation
Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

Solvation, also sometimes called dissolution, is the process of attraction and association of molecules of a solvent with molecules or ions of a solute. 


As ions dissolve in a solvent they spread out and become surrounded by solvent molecules.

Hence the correct option is E.

Multiple choice chemistry mix and separate different types of solutions various mixtures introduction to solutions

A solution is defined as a :

  1. homogeneous mixture of two or more substances

  2. hetrogeneous mixture of two or more substances

  3. homogeneous mixture of liquid and solid components only

  4. homogeneous mixture consisting of water as one of the components
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

A solution is defined as a homogeneous mixture of two or more substances.

Example: Salt in water