Question

Which of the following solute and solvent combinations would be most likely to form solutions? Mark all that apply.

nonpolar solute and nonpolar solvent

polar solute and nonpolar solvent

polar solute and polar solvent

nonpolar solute and polar solvent

Answer 1

Solution would most likely be formed in the combinations of:

A) nonpolar solute and nonpolar solvent

B) polar solute and polar solvent

Step-by-step explanation:

A substance is said to be polar when it is having a dipole (a delocalised positive and negative charge) or it is ionic (dissociate into ions when dissolved in water)

On the other hand, a substance is said to be nonpolar when it does not dissociate into ions when dissolved in water i.e not ionic.

The molecules of nonpolar solute and solvent will combine perfectly since both has no dipole, hence, making a solution

Also, ions of both polar solute and solvent will bound together due to the attraction between opposite charges, hence, making a solution.

Note that combination is difficult between

polar solute and nonpolar solvent, and nonpolar solute and polar solvent. So, no solution is formed

Answer 2

The correct statements is :

• non polar solute and non polar solvent
• polar solute and polar solvent

Step-by-step explanation:

Solute : It is defined as substance dissolved in small amount in a solvent.

Solvent : It is defined as substance in which solute is dissolved is known as solvent and it is larger in amount.

Polar molecules are defined as the molecules which are formed when there is a difference in electronegativities between the atoms. Dipole is created between the atoms of these molecule.

More electronegative atom will attain a partial negative charge and less electronegative atom will attain a partial positive charge.

Water is a polar molecule because of the difference in electronegativity between hydrogen and oxygen atoms is higher.

Like dissolves like which means that polar molecules will get dissolved in polar solvent.

Non-polar molecules are defined as the molecules which are formed when there is no difference in electronegativities between the atoms. The atoms have same electronegativity values.

Chloroform is a non polar molecule because of the difference in electronegativity between chlorine and carbon atoms is lower .

Like dissolves like which means that non-polar molecules will get dissolved in non-polar solvent only.