LIFE SCIENCE

OBJECTIVE LIFE SCIENCE

BIOCHEMISTRY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Why do oil and water not mix?
A
both water and oil are non polar
B
both water and oil are polar
C
water is polar and oil is non polar
D
water is non polar and oil is polar
Explanation: 

Detailed explanation-1: -The structure of an oil molecule is non polar. Its charge is evenly balanced rather than having one positive and one negative end. This means oil molecules are more attracted to other oil molecules than water molecules, and water molecules are more attracted to each other than oil, so the two never mix.

Detailed explanation-2: -Oil is a non-polar molecule, while water is a polar molecule. While all molecules are attracted to each other, some attractions are stronger than others.

Detailed explanation-3: -Water molecules are polar molecules. That means one end of the molecule has a positive charge and the other end has a negative charge. This allows water molecules to bond together. Oil molecules, on the other hand, are non-polar.

Detailed explanation-4: -Polar and Non-polar Molecules This incompatibility is due to the fact that water molecules are polar, but oil is non-polar. Water is a polar molecule because the negatively charged electrons that spin around the nuclei of the atoms are not evenly distributed.

Detailed explanation-5: -The long fatty acid chains mainly contain carbon-hydrogen bonds which have essentially no dipole moment. Therefore oil is non-polar. Liquids will mix when both are polar or both are non-polar but do not mix when one is polar and the other is non-polar.

There is 1 question to complete.